ScienceDaily: Latest Science News

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• Rewriting General Relativity? Putting A New Model Of Quantum Gravity Under The Microscope
• The Ends Of MRNAs May Prevent The Beginnings Of Cancer
• Tools Let Public Contribute To Massive Interactive Online Biodiversity Encyclopedia
• Typhoid Fever Cases In U.S. Linked To Foreign Travel
• See No Weevil: Researcher Tracks Rice Bugs To Help Farmers, Consumers
• Two Million Expected To Die Each Year From Tobacco-induced Cancers By 2015
• Holy Romance! Bats Use Love Songs During Mating, Researchers Say
• MicroRNA In Human Saliva May Help Diagnose Oral Cancer
• After An Earthquake: Watching Over The Water System
• Some Brain Tumors May Be Mediated By Tiny Filament On Cells
• Bugs Pretending To Be Ants Are Protected Against Attack
• Post-Traumatic Stress Disorder Primary Suicide Risk Factor For Veterans
• Scientists Propose Antarctic Location For 'Missing' Ice Sheet
• Gene Variant Linked To Effectiveness Of Popular Anti-clotting Medication Plavix
• Fly Eyes Help Researchers 'See' New Proteins Involved In Memory
• Long-term Tamoxifen Use Increases Risk Of An Aggressive, Hard To Treat Type Of Second Breast Cancer
• NASA's 'A-Train' Of Satellites On Track With Hurricane Research
• Twitter And Health Care: Can A Tweet A Day Keep The Doctor Away?
• Media Multitaskers Pay Mental Price, Study Shows
• High Blood Pressure Linked To Memory Problems In Middle Age
• Arbo-architects Succesful: First Tower Made Of Living Trees
• Evaluating More Lymph Nodes May Not Improve Identification Of Late-stage Colorectal Cancer
• New Method Developed To Detect Copy Number Variants Using DNA Sequencing Technologies
• Majority Of Americans Believe 'Myths' About Health Care Reform, National Survey Finds
• First Gene-encoded Amphibian Toxin Isolated
• Immune System's Role In Bone Loss Uncovered; Finding Could Lead To New Therapies For Osteoporosis
• Unique Acacia Tree's Promise To Revive African Soils
• Heat Stress In Older People And People With Chronic Diseases
• Smart Clothes For Better Healthcare
• Majority Of US Hospitals To Have Smoke-free Campuses By End Of Year
• World's Last Great Forest Under Threat: New Study
• Low-carb Diets Linked To Atherosclerosis And Impaired Blood Vessel Growth
• Gaping Gila Monsters, Buzzing Insects, Clambering Ungulates: New Finds From Germany's Messel Pit
• Using Cranberry Juice To Combat Urinary Tract Infections 'Inconclusive'
• Grid Computing, The New Commodity
• Acupuncture May Bring Relief For Common Condition In Women, Study Suggests
• What She Sees In You: Facial Attractiveness Explained
• Fat In The Liver -- Not The Belly -- May Be A Better Marker For Disease Risk
• Cancer's Break-in Tools Possibly Identified: Nematode Worm Provides Model Of Invasive Cancer
• Link Between Erectile Dysfunction And Obesity Explored In Obesity And Weight Management
• New Study Finds Wild Pikas Are Natural Mammalian Hosts To H5N1 Avian Influenza Virus
• Higher Level Of Testosterone In Women Linked To Choice Of Risky Careers
• Daylight Could Help Control Our Weight
• More Obesity Blues: Obese People Are At Greater Risk For Developing Alzheimer's, Study Finds
• Newly Found DNA Catalysts Cleave DNA With Water Molecule
• Combined Transplant-Vaccine Therapy For High-risk Leukemia Shows Promise
• Eco-friendly Self-cleaning Material Tough On Stains, Light On Effort
• Share And Share Alike: How The Modern World Affects Our Tendency To Share

Rewriting General Relativity? Putting A New Model Of Quantum Gravity Under The Microscope Posted: 26 Aug 2009 11:00 AM PDT Scientists are trying to figure out to what extent a new theory of quantum gravity will reproduce general relativity.

The Ends Of MRNAs May Prevent The Beginnings Of Cancer Posted: 26 Aug 2009 11:00 AM PDT The tail end of a cell's protein templates may contain important cues that control protein creation. When this section is lopped off of a template, a cell can make too many copies of that protein and turn a normal cell cancerous.

Tools Let Public Contribute To Massive Interactive Online Biodiversity Encyclopedia Posted: 26 Aug 2009 11:00 AM PDT The Encyclopedia of Life's inventory of Earth's species -- now 150,000 pages of vetted information, en route to 1.8 million (one page for each known species) -- is shedding light on everything from conservation strategies for endangered species to climate change. It will also help slow the global spread of disease-bearing or invasive pests. Scientists are also outfitting EOL with tags to help scour the data for the secrets of long life. As detailed below, EOL may one day help advance human longevity -- explaining, for example, why certain species, even those within the same family, live longer than others, opening promising new avenues of aging research.

Typhoid Fever Cases In U.S. Linked To Foreign Travel Posted: 26 Aug 2009 11:00 AM PDT Infection with an antimicrobial-resistant strain of typhoid fever among patients in the United States is associated with international travel, especially to the Indian subcontinent (India, Pakistan, and Bangladesh), according to a new study. The research also shows an increase in certain strains of typhoid fever that are resistant to the most commonly used medications for treatment.

See No Weevil: Researcher Tracks Rice Bugs To Help Farmers, Consumers Posted: 26 Aug 2009 11:00 AM PDT When something's bugging rice farmers, a large segment of the world's population will know. That's because a big bite of the supply is taken by hungry insects every year. One of the worst is the rice water weevil. Its gray snout has chomped through the world making a sizable dent in rice supplies. A Texas researcher is splashing through rice paddies with his net to discover news ways of controlling the rice-craving insect.

Two Million Expected To Die Each Year From Tobacco-induced Cancers By 2015 Posted: 26 Aug 2009 11:00 AM PDT The Tobacco Atlas, 3rd Edition, published by the American Cancer Society and World Lung Foundation, estimates that tobacco use kills some six million people each year -- more than a third of whom will die from cancer -- and drains $500 billion annually from global economies.

Holy Romance! Bats Use Love Songs During Mating, Researchers Say Posted: 26 Aug 2009 08:00 AM PDT Love songs aren't only for soft rock FM stations -- they're also used by romantic bats, and researchers in Texas are believed to be the first to decode the mysterious love sounds made by the winged creatures.

MicroRNA In Human Saliva May Help Diagnose Oral Cancer Posted: 26 Aug 2009 08:00 AM PDT Researchers continue to add to the diagnostic alphabet of saliva by identifying the presence of at least 50 microRNAs that could aid in the detection of oral cancer, according to new research.

After An Earthquake: Watching Over The Water System Posted: 26 Aug 2009 08:00 AM PDT After a big earthquake, it's key to keep the water system afloat. Water is necessary for life, and it fights the fires that often accompany such disasters.

Some Brain Tumors May Be Mediated By Tiny Filament On Cells Posted: 26 Aug 2009 08:00 AM PDT Scientists have discovered that a tiny filament extending from cells, until recently regarded as a remnant of evolution, may play a role in the most common malignant brain tumor in children.

Bugs Pretending To Be Ants Are Protected Against Attack Posted: 26 Aug 2009 08:00 AM PDT A classic example of a mutualism, or a mutually beneficial relationship between two species, is that of warm-climate Acacia plants and their ant tenants. The plants provide the ants with shelter within their hollowed-out thorns and food in the form of nectar and protein. The ants, in return, defend the tree viciously, attacking anything that comes near – from other insects to birds and small mammals.

Post-Traumatic Stress Disorder Primary Suicide Risk Factor For Veterans Posted: 26 Aug 2009 08:00 AM PDT Researchers working with Iraq and Afghanistan war veterans have found that post-traumatic stress disorder, the current most common mental disorder among veterans returning from service in the Middle East, is associated with an increased risk for thoughts of suicide.

Scientists Propose Antarctic Location For 'Missing' Ice Sheet Posted: 26 Aug 2009 05:00 AM PDT New research indicates a possible Antarctic location for ice that seemed to be missing at a key point in climate history 34 million years ago. The research has important implications for climate change.

Gene Variant Linked To Effectiveness Of Popular Anti-clotting Medication Plavix Posted: 26 Aug 2009 05:00 AM PDT Researchers have identified a common gene variant carried by as many as a third of the general population that is believed to play a major role in determining why people do not respond to a popular anti-clotting medication, Plavix. If the medication doesn't work, patients are at increased risk for subsequent heart attacks, strokes and other serious cardiovascular problems.

Fly Eyes Help Researchers 'See' New Proteins Involved In Memory Posted: 26 Aug 2009 05:00 AM PDT With more than 1,500 eyes, not much escapes the fruit fly's sight. Now, a new research report describes how researchers from the United States and Ireland used those eyes to "see" new proteins necessary for memory. In addition to shedding light on this critical neurological process, the study also provides information on the fragile X form of mental retardation in humans.

Long-term Tamoxifen Use Increases Risk Of An Aggressive, Hard To Treat Type Of Second Breast Cancer Posted: 26 Aug 2009 05:00 AM PDT While long-term tamoxifen use among breast cancer survivors decreases their risk of developing the most common, less aggressive type of second breast cancer, such use is associated with a more than four-fold increased risk of a more aggressive, difficult-to-treat type of cancer in the breast opposite, or contralateral, to the initial tumor.

NASA's 'A-Train' Of Satellites On Track With Hurricane Research Posted: 26 Aug 2009 05:00 AM PDT NASA has several satellites that orbit the Earth one behind the other on the same track. They're called the "A-Train" and one of the things they study is tropical cyclones. There are also other satellites outside the A-Train that are used to study different aspects of tropical cyclones. The satellites that form the A-Train provide unique information about tropical cyclones, the collective term for tropical depressions, tropical storms, hurricanes and typhoons.

Twitter And Health Care: Can A Tweet A Day Keep The Doctor Away? Posted: 26 Aug 2009 05:00 AM PDT Twitter, the increasingly popular social networking tool that was at first merely a convenient way to stay in touch with friends and family, is emerging as a potentially valuable means of real-time, on-the-go communication of health care information and medical alerts.

Media Multitaskers Pay Mental Price, Study Shows Posted: 26 Aug 2009 02:00 AM PDT Attention, multitaskers (if you can pay attention, that is): Your brain may be in trouble. People who are regularly bombarded with several streams of electronic information do not pay attention, control their memory or switch from one job to another as well as those who prefer to complete one task at a time, researchers have found.

High Blood Pressure Linked To Memory Problems In Middle Age Posted: 26 Aug 2009 02:00 AM PDT High blood pressure is linked to memory problems in people over 45, according to new research. The study found that people with high diastolic blood pressure, which is the bottom number of a blood pressure reading, were more likely to have cognitive impairment, or problems with their memory and thinking skills, than people with normal diastolic readings.

Arbo-architects Succesful: First Tower Made Of Living Trees Posted: 26 Aug 2009 02:00 AM PDT For several years, researchers in Germany have been focusing on the idea of living plant constructions. Recently the first "baubotanical" tower made of living trees has been completed. The prototypical building is located in the very south of Germany and offers the opportunity to carry out practical tests.

Evaluating More Lymph Nodes May Not Improve Identification Of Late-stage Colorectal Cancer Posted: 26 Aug 2009 02:00 AM PDT Surgically removing and evaluating an increasing number of lymph nodes does not appear to identify a greater number of patients with stage III colorectal cancer, according to a new report.

New Method Developed To Detect Copy Number Variants Using DNA Sequencing Technologies Posted: 26 Aug 2009 02:00 AM PDT Researchers have developed a sensitive and accurate way of identifying gene copy number variations. The method uses new DNA sequencing technologies to look for regions of the genome that vary in copy number between individuals in the population.

Majority Of Americans Believe 'Myths' About Health Care Reform, National Survey Finds Posted: 26 Aug 2009 02:00 AM PDT Findings from a national survey of Americans by researchers says that Americans do believe the "myths" about health care reform, confirming that the White House may indeed be losing this battle.

First Gene-encoded Amphibian Toxin Isolated Posted: 25 Aug 2009 11:00 PM PDT Researchers in China have discovered the first protein-based toxin in an amphibian -- a 60-amino-acid neurotoxin found in the skin of a Chinese tree frog. This finding may help shed more light into both the evolution of amphibians and the evolution of poison.

Immune System's Role In Bone Loss Uncovered; Finding Could Lead To New Therapies For Osteoporosis Posted: 25 Aug 2009 11:00 PM PDT Got high cholesterol? You might want to consider a bone density test. A new study sheds light on the link between high cholesterol and osteoporosis and identifies a new way that the body's immune cells play a role in bone loss. The findings could lead to new immune-based approaches for treating osteoporosis.

Unique Acacia Tree's Promise To Revive African Soils Posted: 25 Aug 2009 11:00 PM PDT A type of acacia tree with an unusual growth habit -- unlike virtually all other trees -- holds particular promise for farmers in Africa as a free source of nitrogen for their soils that could last generations.

Heat Stress In Older People And People With Chronic Diseases Posted: 25 Aug 2009 11:00 PM PDT People over the age of 60 are the most vulnerable to heat waves, with 82-92 percent more deaths than average occurring in this age group. Risks for heat-related illness or injury are also heightened in people with obesity, heart disease, diabetes and respiratory conditions.

Smart Clothes For Better Healthcare Posted: 25 Aug 2009 11:00 PM PDT Unlike many remote health monitoring systems that rely on sensors strapped to users' arms or chests connected by wires to bulky equipment, a European team has embedded sensing devices directly into textiles, creating garments that are not only smart but also comfortable and practical to wear. Data from the biosignals collected by the clothes is then sent via a mobile connection to caregivers, allowing doctors to check up on their patients and warning if their health deteriorates.

Majority Of US Hospitals To Have Smoke-free Campuses By End Of Year Posted: 25 Aug 2009 11:00 PM PDT While hospital buildings are often smoke-free, a new study finds that by February 2008, 45 percent of US hospitals had adopted "smoke-free campus" policies, meaning that all the property owned or leased by the hospital, both indoors and outdoors, was smoke-free and there were no designated smoking areas on those properties.

World's Last Great Forest Under Threat: New Study Posted: 25 Aug 2009 08:00 PM PDT The world's last remaining "pristine" forest -- the boreal forest across large stretches of Russia, Canada and other northern countries -- is under increasing threat, a team of international researchers has found.

Low-carb Diets Linked To Atherosclerosis And Impaired Blood Vessel Growth Posted: 25 Aug 2009 08:00 PM PDT Even as low-carbohydrate, high-protein diets have proven successful at helping individuals to rapidly lose weight, little is known about the diets' long-term effects on vascular health. Now, a study finds a significant increase in atherosclerosis in mice that were fed a low-carb diet.

Gaping Gila Monsters, Buzzing Insects, Clambering Ungulates: New Finds From Germany's Messel Pit Posted: 25 Aug 2009 08:00 PM PDT Today, anyone who looks into the Messel Pit, about 20 kilometres southeast of Frankfurt, Germany, will see scattered groups of trees, bushes and grasses. Underlying the vegetation, however, are richly fossiliferous shales. Some astonishingly well-preserved fossil finds were recently recovered by scientists from these deposits, laid down in the former volcanic lake, and add exotic colour and diversity to the Eocene "Messel world" of 47 million years ago. Some representative finds of animals discovered in 2007 and 2008 were recently exhibited.

Using Cranberry Juice To Combat Urinary Tract Infections 'Inconclusive' Posted: 25 Aug 2009 08:00 PM PDT Current clinical evidence for using cranberry juice to combat urinary tract infections is "unsatisfactory and inconclusive," according to one researcher.

Grid Computing, The New Commodity Posted: 25 Aug 2009 08:00 PM PDT Researchers have created a platform for trading computing resources that allows the selling and buying of standardized computing resources. In the process, they could make computing a utility like electricity.

Acupuncture May Bring Relief For Common Condition In Women, Study Suggests Posted: 25 Aug 2009 08:00 PM PDT Polycystic ovary syndrome, a common condition among women, can be relieved by the use of acupuncture and exercise, a new study by researchers in Sweden suggests.

What She Sees In You: Facial Attractiveness Explained Posted: 25 Aug 2009 05:00 PM PDT When it comes to potential mates, women may be as complicated as men claim they are, according to psychologists.

Fat In The Liver -- Not The Belly -- May Be A Better Marker For Disease Risk Posted: 25 Aug 2009 05:00 PM PDT New findings from nutrition researchers suggest that it's not whether body fat is stored in the belly that affects metabolic risk factors for diabetes, high blood triglycerides and cardiovascular disease, but whether it collects in the liver.

Cancer's Break-in Tools Possibly Identified: Nematode Worm Provides Model Of Invasive Cancer Posted: 25 Aug 2009 05:00 PM PDT A single cell in a one-millimeter nematode worm is providing valuable new clues into cancer's deadliest behavior -- its ability to put down roots in new tissues after spreading throughout the body.

Link Between Erectile Dysfunction And Obesity Explored In Obesity And Weight Management Posted: 25 Aug 2009 05:00 PM PDT Obese men are at increased risk for erectile dysfunction, likely caused by atherosclerosis-related hypertension and cardiovascular disease, as well as hormonal changes associated with obesity.

New Study Finds Wild Pikas Are Natural Mammalian Hosts To H5N1 Avian Influenza Virus Posted: 25 Aug 2009 05:00 PM PDT For the first time a new study suggests that when exposed in their natural ecosystem, wild pikas (a species closely related to rabbits) are mammalian hosts of H5N1 subtype avian influenza viruses and may also be a source of transmission to domestic mammals and humans.

Higher Level Of Testosterone In Women Linked To Choice Of Risky Careers Posted: 25 Aug 2009 05:00 PM PDT Higher levels of testosterone are associated with a greater appetite for risk in women. The link between risk aversion and testosterone predicted career choice: individuals who were high in testosterone and low in risk aversion chose riskier careers in finance.

Daylight Could Help Control Our Weight Posted: 25 Aug 2009 02:00 PM PDT Exciting research into brown adipose tissue -- brown fat, which is found in abundance in hibernating animals and newborn babies -- could lead to new ways of preventing obesity.

More Obesity Blues: Obese People Are At Greater Risk For Developing Alzheimer's, Study Finds Posted: 25 Aug 2009 02:00 PM PDT Researchers have found that obese people had 8 percent less brain tissue than people with normal weight, while overweight people had 4 percent less tissue in their frontal lobes.

Newly Found DNA Catalysts Cleave DNA With Water Molecule Posted: 25 Aug 2009 02:00 PM PDT Better tools for manipulating DNA in the laboratory may soon be possible with newly discovered deoxyribozymes (catalytic DNA) capable of cleaving single-stranded DNA, researchers say.

Combined Transplant-Vaccine Therapy For High-risk Leukemia Shows Promise Posted: 25 Aug 2009 02:00 PM PDT Two of the most powerful approaches to cancer treatment -- a stem cell transplant and an immune system-stimulating vaccine -- appear to reinforce each other in patients with an aggressive, hard-to-control form of leukemia, scientists have found.

Eco-friendly Self-cleaning Material Tough On Stains, Light On Effort Posted: 25 Aug 2009 02:00 PM PDT Scientists are reporting development of a new coating for glass, plastics and a range of other materials that would enable consumers to wipe away oils with plain water. They note that the material can be added to common window cleaning sprays, and used to prevent bathroom mirrors, automobile windshields and other surfaces from fogging up.

Share And Share Alike: How The Modern World Affects Our Tendency To Share Posted: 25 Aug 2009 02:00 PM PDT From giving directions to a stranger to cooking a meal for loved ones, sharing is an essential part of the human experience. A new study unravels the complexities of sharing, and examines how changes in our culture affect sharing.

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