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Low levels of brain chemical may lead to obesity A brain chemical that plays a role in long term memory also appears to be involved in regulating how much people eat and their likelihood of becoming obese, according to a National Institutes of Health study of a rare genetic condition. Source: NIH/National Institute of Child Health and Human Development Posted at: 5:32pm
Genetic link to dry macular degeneration found A University of Kentucky ophthalmologist, along with a team of scientists, has discovered a genetic mutation that offers protection against a type of age-related macular degeneration (AMD), a disease of the eye that is the leading cause of blindness in adults over age 50. Source: University of Kentucky Posted at: 5:32pm
Sticks and stones: A new study on social and physical pain We all know the famous saying: "Sticks and stones may break my bones, but words will never hurt me," but is this proverb actually true? Source: Association for Psychological Science Posted at: 5:06pm
Yellowstone's ancient supervolcano: Only lukewarm? The geysers of Yellowstone National Park owe their eistence to the "Yellowstone hotspot"--a region of molten rock buried deep beneath Yellowstone, geologists have found. Source: National Science Foundation Posted at: 5:06pm
"Sick" fat found in obese people A Temple University study finds fat in obese patients is "sick" when compared to fat in lean patients. Source: Temple University Posted at: 5:06pm
Jamaican lizards' shows of strength mark territory at dawn, dusk What does Jack LaLanne have in common with a Jamaican lizard? Like the ageless fitness guru, the lizards greet each new day with vigorous push-ups. Source: University of California, Davis/Harvard Posted at: 1:39pm
Why is Greenland covered in ice? Only changes in carbon dioxide levels are able to explain the transition from the mostly ice-free Greenland of three million years ago, to the ice-covered Greenland of today Source: University of Bristol Posted at: 1:39pm
Scientists reveal effects of quantum 'traffic jam' in high-temperature superconductors Scientists have uncovered the first experimental evidence for why the transition temperature of high-temperature superconductors -- the temperature at which these materials carry electrical current with no resistance -- cannot simply be elevated by increasing the electrons' binding energy. Source: DOE/Brookhaven National Laboratory Posted at: 1:39pm
Scientists discover minimum mass for galaxies By analyzing light from small, faint galaxies that orbit the Milky Way, UC Irvine scientists believe they have discovered the minimum mass for galaxies in the universe – 10 million times the mass of the sun. Source: University of California - Irvine Posted at: 1:39pm
NASA's Mars Rover Opportunity Climbing Out of Victoria Crater NASA's Mars Exploration rover Opportunity is heading back out to the Red Planet's surrounding plains nearly a year after descending into a large Martian crater to examine exposed ancient rock layers. Source: NASA Posted at: 12:52pm
Generations of Stars Pose for Family Portrait A new image from NASA's Spitzer Space Telescope tells a tale of life and death amidst a rich family history. The striking infrared picture shows a colorful cosmic cloud, called W5, studded with multiple generations of blazing stars. Source: NASA/JPL Posted at: 12:45pm
Subliminal learning demonstrated in the human brain Although the idea that instrumental learning can occur subconsciously has been around for nearly a century, it had not been unequivocally demonstrated. Source: Cell Press Posted at: 12:40pm
Cocaine-induced brain plasticity may protect the addicted brain A new study has unraveled some of the mysteries of the cocaine-addicted brain and may pave the way for the design of more effective treatments for drug addiction. Source: Cell Press Posted at: 12:40pm
Ancient mother spawns new insight on reptile reproduction A 75-million-year-old fossil of a pregnant turtle and a nest of fossilized eggs that were discovered in the badlands of southeastern Alberta by scientists and staff from the University of Calgary and the Royal Tyrrell Museum of Palaeontology are yielding new ideas on the evolution of egg-laying and reproduction in turtles and tortoises. Source: University of Calgary Posted at: 12:40pm
Toddler cancer spotted via e-mail A toddler in Florida has been diagnosed with cancer after a Manchester woman saw early warning signs in a picture. Source: BBC News Posted at: 12:40pm
Black raspberries slow cancer by altering hundreds of genes New research strongly suggests that a mix of preventative agents, such as those found in concentrated black raspberries, may more effectively inhibit cancer development than single agents aimed at shutting down a particular gene. Source: Ohio State University Posted at: 12:40pm
Model helps computers sort data more like humans Humans have a natural tendency to find order in sets of information, a skill that has proven difficult to replicate in computers. Faced with a large set of data, computers don't know where to begin -- unless they're programmed to look for a specific structure, such as a hierarchy, linear order, or a set of clusters. Source: Massachusetts Institute of Technology Posted at: 10:33am
Beyond jewelry: Engineering new uses for gold The glitter of gold may hold more than just beauty, or so says a team of MIT researchers that is working on ways to use tiny gold rods to fight cancer, deliver drugs and more. Source: Massachusetts Institute of Technology Posted at: 10:33am
Sleight of hand and sense of self An illusion that tricks people into believing a rubber hand belongs to them isn’t all in the mind, Oxford University researchers have found. They have observed a physical response as well, a finding that offers insight into conditions which affect a patient’s sense of self and body ownership, such as stroke, schizophrenia, autism, or eating disorders. Source: University of Oxford Posted at: 10:33am
When glaciers disappear, the bugs move in The bare soil left behind by retreating glaciers is soon taken over by bacteria that prepare the ground for life on a larger scale Source: New Scientist Posted at: 10:33am
A Clash of Clusters Provides New Clue to Dark Matter A powerful collision of galaxy clusters has been captured by NASA's Hubble Space Telescope and Chandra X-ray Observatory. The observations of the cluster known as MACS J0025.4-1222 indicate that a titanic collision has separated the dark from ordinary matter and provide an independent confirmation of a similar effect detected previously in a target dubbed the Bullet Cluster. Source: Newswise Posted at: 10:24am
Most Adults Aren’t Immunized Against Serious Infectious Diseases When is the last time you got vaccinated? If you’re like most Americans it’s been years, maybe even decades. In fact the Centers for Disease Control has warned that far too few American adults are being vaccinated against serious, even deadly diseases. Source: Newswise Posted at: 10:24am
Chronic stress alters our genetic immune response Most people would agree that stress increases your risk for illness and this is particularly true for severe long-term stresses, such as caring for a family member with a chronic medical illness. However, we still have a relatively limited understanding of exactly how stress contributes to the risk for illness. Source: Elsevier Posted at: 10:10am
Scientists unmask brain's hidden potential Previous research has found that when vision is lost, a person's senses of touch and hearing become enhanced. But exactly how this happens has been unclear. Source: Beth Israel Deaconess Medical Center Posted at: 10:10am
Scientists Learn How Nemo Finds His Way Home How does the orange clownfish — aka Nemo from the movie "Finding Nemo" — really find its way home? Source: LiveScience Posted at: 10:10am
Bone parts don't add up to conclusion of Palauan dwarfs Misinterpreted fragments of leg bones, teeth and brow ridges found in Palau appear to be an archaeologist's undoing, according to researchers at three institutions. They say that the so-called dwarfs of these Micronesian islands actually were modern, normal-sized hunters and gatherers. Source: University of Oregon Posted at: 10:10am
Unusual ultrasonic vocalization patterns in mice may be useful for modeling autism Scientists have found novel patterns of ultrasonic vocalizations in a genetic mouse model of autism, adding a unique element to the available mouse behaviors that capture components of the human disease, and representing a new step towards identifying causes and better treatments. Source: Public Library of Science Posted at: 10:10am
Protection zones in the wrong place to prevent coral reef collapse Conservation zones are in the wrong place to protect vulnerable coral reefs from the effects of global warming, an international team of scientists warned today. Source: Public Library of Science Posted at: 10:10am
Pre-Incan female Wari mummy unearthed in Peru Archeologists working at Peru's Huaca Pucllana ruins pulled a mummy from a tomb on Tuesday, thought to be from the ancient Wari culture that flourished before the Incas. Source: Reuters Posted at: 10:10am
Men defy stereotypes in defining masculinity Contrary to stereotypes about sexual performance and masculinity, men interviewed in a large international study reported that being seen as honorable, self-reliant and respected was more important to their idea of masculinity than being seen as attractive, sexually active or successful with women. Source: Indiana University Posted at: 5:15pm
Study of islands reveals surprising extinction results It's no secret that humans are having a huge impact on the life cycles of plants and animals. UC Santa Barbara's Steven D. Gaines and fellow researcher Dov Sax decided to test that theory by studying the world's far-flung islands. Source: University of California - Santa Barbara Posted at: 4:48pm
ABC-transporters efflux anti-HIV drugs Researchers at Tulane University Medical Center in New Orleans (USA) have discovered that drug-efflux pumps, belonging to the ATP-binding cassette (ABC) transporter family, are constitutively expressed on vascular endothelial cells. Source: Society for Experimental Biology and Medicine Posted at: 4:48pm
Scientist unveils secret of newborn's first words A new study could explain why "daddy" and "mommy" are often a baby's first words – the human brain may be hard-wired to recognize certain repetition patterns. Source: University of British Columbia Posted at: 4:39pm
Trouble quitting?: A new smoking study may reveal why A new study from researchers at the University of Pittsburgh and Carnegie Mellon University sheds light on why smokers' intentions to quit "cold turkey" often fizzle out within days or even hours. Source: University of Pittsburgh Posted at: 4:39pm
Why do eyelids sag with age? Many theories have sought to explain what causes the baggy lower eyelids that come with aging, but UCLA researchers have now found that fat expansion in the eye socket is the primary culprit. Source: University of California - Los Angeles Posted at: 4:29pm
GLAST Observatory renamed for Fermi, reveals entire gamma-ray sky The U.S. Department of Energy (DOE) and NASA announced today that the Gamma-Ray Large Area Space Telescope (GLAST) has revealed its first all-sky map in gamma rays. Source: DOE/US Department of Energy Posted at: 4:29pm
Researchers find high levels of toxic metals in on-line herbal medicines Researchers at Boston University School of Medicine (BUSM) have found that one fifth of both U.S.-manufactured and Indian-manufactured Ayurvedic medicines purchased via the Internet contain lead, mercury or arsenic. Source: Boston University Posted at: 4:29pm
Racing cane toads reveals they get cold feet on Southern Australia invasion Cane toads weren't allowed to compete in the Olympics, but scientists have raced cane toads in the laboratory and calculated that they would not be able to invade Melbourne, Adelaide or Hobart and are unlikely to do well in Perth or Sydney, even with climate change. Source: University of Melbourne Posted at: 12:16pm
Molecular cubes in the sunlight Hydrogen will be one of the most important fuels of the future. It would be ideal to obtain hydrogen by splitting water instead of from petroleum. However, the electrolysis of water is a very energy intensive process, making it both expensive and unsustainable if the electricity necessary to generate it comes from the burning of fossil fuels. Source: Wiley-Blackwell Posted at: 12:16pm
Caesarean babies more likely to develop type 1 diabetes Babies delivered by Caesarean section have a 20 per cent higher risk than normal deliveries of developing the most common type of diabetes in childhood, according to a study led by Queen's University Belfast. Source: Queen's University Belfast Posted at: 12:16pm
Research expedition on corals and global warming For just one late-summer night each year, the shallow waters off the coast of Puerto Rico fill with the pale-pink spawn of elkhorn corals -- the tiny, round packets of the adult corals' eggs and sperm. Source: Penn State Posted at: 12:16pm
New analysis of earthquake zone raises questions Oregon State University scientists have completed a new analysis of an earthquake fault line that extends some 200 miles off the southern and central Oregon coast that they say is more active than the San Andreas Fault in California. Source: Oregon State University Posted at: 12:16pm
Scientists Discover Leptin Can Also Aid Type 1 Diabetics Terminally ill rodents with type 1 diabetes have been restored to full health with a single injection of a substance other than insulin by scientists at UT Southwestern Medical Center. Source: UT Southwestern Medical Center Posted at: 9:51am
Cell removal technique could lead to cheaper drugs Researchers at the University of Edinburgh have pioneered a simple way to remove dead cells from cell cultures used to make protein-based drugs, which are increasingly prescribed to treat a range of illnesses. Source: University of Edinburgh Posted at: 9:51am
Fingerprint analysis technique could be used to identify bombmakers University of Leicester experts have held discussions with military personnel in Afghanistan following the discovery of new technology to identify fingerprints on metal. Source: University of Leicester Posted at: 9:51am
'Perfect pitch' in humans far more prevalent than expected Researchers at the University of Rochester's Eastman School of Music and Department of Brain and Cognitive Sciences have developed a unique test for perfect pitch, and have found surprising results. Source: University of Rochester Posted at: 9:51am
How do galaxies grow? How do galaxies form? The most widely accepted answer to this fundamental question is the model of 'hierarchical formation', a step-wise process in which small galaxies merge to build larger ones. Source: ESO Posted at: 9:51am
New Sphere in Exploring the Abyss Scientists are hard at work on the tiny submarine that will replace the legendary Alvin. Source: NYT Posted at: 9:51am
New evidence debunks 'stupid' Neanderthal myth Research by UK and American scientists has struck another blow to the theory that Neanderthals (Homo neanderthalensis) became extinct because they were less intelligent than our ancestors (Homo sapiens). Source: University of Exeter Posted at: 9:51am
Researchers find monkeys enjoy giving to others Researchers at the Yerkes National Primate Research Center, Emory University, have shown capuchin monkeys, just like humans, find giving to be a satisfying experience. Source: Emory University Posted at: 9:51am
Looking beyond the drug receptor for clues to drug effectiveness Antipsychotic drugs that are widely used to treat schizophrenia and other problems may not work as scientists have assumed, according to findings from Duke University Medical Center researchers that could lead to changes in how these drugs are developed and prescribed. Source: Duke University Medical Center Posted at: 9:51am
Human exoskeleton suit helps paralyzed people walk paralyzed for the past 20 years, former Israeli paratrooper Radi Kaiof now walks down the street with a dim mechanical hum. Source: Reuters Posted at: 9:51am
Potential diabetes treatment selectively kills autoimmune cells from human patients In experiments using blood cells from human patients with diabetes and other autoimmune disorders, Massachusetts General Hospital (MGH) researchers have confirmed the mechanism behind a potential new therapy for type 1 diabetes. Source: Massachusetts General Hospital Posted at: 9:51am
Sleight of hand and sense of self An illusion that tricks people into believing a rubber hand belongs to them isn't all in the mind, Oxford University researchers have found. They have observed a physical response as well, a finding that offers insight into conditions which affect a patient's sense of self and body ownership, such as stroke, schizophrenia, autism, or eating disorders. Source: ABC NewsUniversity of Oxford Posted at: 9:51am
Exploring the function of sleep Is sleep essential? Ask that question to a sleep-deprived new parent or a student who has just pulled an "all-nighter," and the answer will be a grouchy, "Of course!" Source: Public Library of Science Posted at: 9:50am
'Magnetic cows' are visible from space Despite thousands of years of coexistence, exploitation and cheese, humanity seems to have missed an intriguing fact about cows: they like to point north. Or possibly south. Source: Nature Posted at: 9:50am
How does bluetongue virus survive through the winter? In 2006, Bluetongue virus – which infects livestock – reached Northern Europe for the first time. Some people thought that the outbreak would be limited to that particular year, as winter was expected to kill off the midges that host and spread the disease, bringing the threat of infection to an end. Source: Public Library of Science Posted at: 9:50am
Largest Squid Ever Caught Is "Giant, Gelatinous Blob" Despite its species' fearsome reputation, the colossal squid was likely sluggish and would have been filled with thousands of glowing babies, said a scientist who dissected her Source: National Geographic Posted at: 9:50am
DNA barcoding in danger of 'ringing up' wrong species DNA barcoding is a movement to catalog all life on earth by a simple standardized genetic tag, similar to stores labeling products with unique barcodes. The effort promises foolproof food inspection, improved border security, and better defenses against disease-causing insects, among many other applications. Source: Brigham Young University Posted at: 9:50am
New findings explain genetic disorder's unique shift Findings reported in this month's issue of PLoS Biology give insight into the unique characteristics of the birth defect known as Prader-Willi Syndrome (PWS), and at the same time, may help explain the way that a certain type of gene is expressed in all humans. Source: University of Tennessee at Knoxville Posted at: 9:50am
How to get a college roommate you can live with Anxious college freshmen can relax. No matter who will be sharing their dorm room, they have the power to make the relationship better, University of Michigan research suggests. Source: University of Michigan Posted at: 6:25pm
Century-old rule of chemistry overturned A new study by research chemists at the University of Warwick has challenged a century old rule of pharmacology that defined how quickly key chemicals can pass across cell walls. The new observations of the Warwick researchers suggest that the real transport rates could be up to a hundred times slower than predicted by the century old "Overton's Rule". Source: University of Warwick Posted at: 6:22pm
Why wind turbines can mean death for bats Power-generating wind turbines have long been recognized as a potentially life-threatening hazard for birds. But at most wind facilities, bats actually die in much greater numbers. Source: Cell Press Posted at: 2:12pm
Road Tolls Hacked Drivers using the automated FasTrak toll system on roads and bridges in California's Bay Area could be vulnerable to fraud, according to a computer security firm in Oakland, CA. Source: Technology Review Posted at: 2:12pm
New hope for stroke patients If a stroke patient doesn't get treatment within approximately the first three hours of symptoms, there's not much doctors can do to limit damage to the brain. Source: Loyola University Health System Posted at: 2:12pm
Burning incense increases risk of respiratory tract cancers Long term use of incense increases the risk of developing cancers of the respiratory tract, according to a new study. The new analysis, which the authors say is the first prospective investigation of incense and cancer risk Source: American Cancer Society Posted at: 2:12pm
If Bigfoot Isn't In Georgia, Where Is He? One more Bigfoot hoax went down in history this week. But Jeffrey Meldrum, a professor of anatomy and biological sciences at Idaho State University, says strange tracks are part of a growing body of evidence that something may be out there. Source: NPR Posted at: 2:12pm