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jueves, 26 de noviembre de 2009
Robotic clam digs in mudflats
ScienceDaily (2009-11-25) -- To design a lightweight anchor that can dig itself in to hold small underwater submersibles, Anette Hosoi of MIT borrowed techniques from one of nature's best diggers -- the razor clam.
Organizational psychologists use Rock Band to study how people achieve flow while at work
ScienceDaily (2009-11-25) -- Using the video game Rock Band, organizational psychologists have found that -- like Goldilocks -- most people achieve flow with work that is neither too easy nor too hard but just right.
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'No muss, no fuss' miniaturized analysis for complex samples developed
ScienceDaily (2009-11-25) -- Researchers have created a novel and simple way to analyze samples that are complex mixtures -- such as whole milk, blood serum and dirt in solution -- by adapting a new separation technique called gradient elution moving boundary electrophoresis.
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Butterfly proboscis to sip cells
ScienceDaily (2009-11-25) -- A butterfly's proboscis looks like a straw -- long, slender and used for sipping -- but it works more like a paper towel, according to researchers. They hope to borrow the tricks of this piece of insect anatomy to make small probes that can sample the fluid inside of cells.
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Fat around the middle increases the risk of dementia
ScienceDaily (2009-11-25) -- Women who store fat on their waist in middle age are more than twice as likely to develop dementia when they get older, reveals a new study.
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Hydrogen-economy on the way? New hydrogen-storage method discovered
ScienceDaily (2009-11-25) -- Scientists have found for the first time that high pressure can be used to make a unique hydrogen-storage material. The discovery paves the way for a new approach to the hydrogen-storage problem. The researchers found that the normally nonreactive, noble gas xenon combines with molecular hydrogen under pressure to form a previously unknown solid with unusual bonding chemistry. The discovery debuts a new family of materials, which could boost hydrogen technologies.
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Yoga boosts heart health, new research finds
ScienceDaily (2009-11-25) -- Heart rate variability, a sign of a healthy heart, has been shown to be higher in yoga practitioners than in non-practitioners, according to new research.
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How coughing is triggered by environmental irritants
ScienceDaily (2009-11-25) -- Scientists have revealed how environmental irritants such as air pollution and cigarette smoke cause people to cough. The authors of a new study have identified the reaction inside the lungs that can trigger coughing when a person is exposed to particular irritants in the air. They suggest that their findings may ultimately lead to the development of new treatments for chronic coughing.
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America's increasing food waste is laying waste to the environment
ScienceDaily (2009-11-25) -- Food waste contributes to excess consumption of freshwater and fossil fuels which, along with methane and carbon dioxide emissions from decomposing food, impacts global climate change. Scientists have calculated the energy content of nationwide food waste from the difference between the US food supply and the food eaten by the population.
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Eye floaters and flashes of light linked to retinal tear, detachment
ScienceDaily (2009-11-25) -- Suddenly seeing floaters or flashes of light may indicate a serious eye problem that -- if untreated -- could lead to blindness, a new study shows.
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Soy component may be key to fighting colon cancer
ScienceDaily (2009-11-25) -- Scientists have identified a new class of therapeutic agents found naturally in soy that can prevent and possibly treat colon cancer, the third most deadly form of cancer. Sphingadienes are natural lipid molecules found in soy that research shows may be the key to fighting colon cancer.
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Magic box for mission impossible
ScienceDaily (2009-11-25) -- For rescuers working in remote places working phones and Internet are literally a question of life and death. A team of researchers and businesses in Norway, Spain and Finland decided they need to be equipped with a box with the power to connect them to networks wherever they are.
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High-tech origami: Water droplets direct self-assembly process in thin-film materials
ScienceDaily (2009-11-25) -- Researchers have developed a technique for fabricating 3-D, single-crystalline silicon structures from thin films by coupling photolithography and a self-folding process driven by capillary interactions.
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'Safety valve' protects photosynthesis from too much light
ScienceDaily (2009-11-25) -- Photosynthetic organisms need to cope with a wide range of light intensities, which can change over timescales of seconds to minutes. Too much light can damage the photosynthetic machinery and cause cell death. Scientists have found that specific proteins in algae can act as a safety valve to dissipate excess absorbed light energy before it can wreak havoc in cells.
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You Say Po-TAY-to, And I Say Pot-AAH-to! Language Evolves Through Our Own Use Of It
ScienceDaily (2009-11-26) -- Change in language can be compared with evolution in the world of animals and plants. According to a Dutch researcher, an individual user of language can spark off an evolution of his or her language. His new approach, comparing linguistic change with evolution, offers a number of advantages for the study of linguistic change.
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Evolution of highly toxic box jellyfish unraveled
ScienceDaily (2009-11-26) -- With thousands of stinging cells that can emit deadly venom from tentacles that can reach ten feet in length, the 50 or so species of box jellyfish have long been of interest to scientists and to the public. Yet little has been known about the evolution of this early branch in the animal tree of life. Researchers have now unraveled the evolutionary relationships among the various species of box jellyfish, thereby providing insight into the evolution of their toxicity.
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When you eat may be just as vital to your health as what you eat
ScienceDaily (2009-11-26) -- When you eat may be just as vital to your health as what you eat, found researchers. New experiments in mice revealed that the daily waxing and waning of thousands of genes in the liver -- the body's metabolic clearinghouse -- is mostly controlled by food intake and not by the body's circadian clock as conventional wisdom had it.
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Brains Benefit From Multilingualism
ScienceDaily (2009-11-26) -- For a considerable time already there has been discussion within scientific circles about whether knowing and using multiple languages could possibly have positive effects on the human brain and thinking. There have been a number of international studies on the subject, which indicate that the ability to use more than one language brings an individual a considerable advantage.
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miércoles, 25 de noviembre de 2009
Pelvic Floor Muscle Exercises Can Help Manage Urinary Incontinence In Older Women
ScienceDaily (2009-11-24) -- Researchers have found that a program of pelvic floor muscle exercises, combined with pelvic health education, can be an effective way to manage urinary incontinence in elderly women.
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Rescuing male turkey chicks
ScienceDaily (2009-11-24) -- A novel approach to classify the gender of six-week-old turkey poults could save millions of male chicks from being killed shortly after birth, according to researchers. Their use of infrared spectroscopy to determine the gender of young birds shows that it is a fast and accurate method.
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Is global warming unstoppable?
ScienceDaily (2009-11-24) -- In a provocative new study, a scientist argues that rising carbon dioxide emissions -- the major cause of global warming -- cannot be stabilized unless the world's economy collapses or society builds the equivalent of one new nuclear power plant each day.
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MorphologyNet.org -- Biologist, Computer Scientist Make 3D Anatomy Images Available Online
ScienceDaily () -- Frog biology is especially noteworthy because of the amphibians' sensitivity to pollution, which often flags previously unknown environmental problems. Science labs and classrooms around the world can now get inside frogs, slice them up, and rotate 3D images of their organs on MorphologyNet.org, a new online resource produced by a biologist and a computer scientist. The Web site also contains models of fish, reptiles, birds and mammals. Researchers will be able to share images across continents and limit the samples of endangered species that are destroyed in the research process.
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Killer fungus threatening amphibians
ScienceDaily (2009-11-24) -- Amphibians like frogs and toads have existed for 360 million years and survived when the dinosaurs didn't, but a new aquatic fungus is threatening to make many of them extinct, according to a new article.
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Gene implicated in stress-induced high blood pressure
ScienceDaily (2009-11-24) -- Do stressful situations make your blood pressure rise? If so, your phosducin gene could be to blame according to new research that indicates a role for the protein generated by the phosducin gene in modulating blood pressure in response to stress in both mice and humans.
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martes, 24 de noviembre de 2009
The search: Computers dig deeper for meaning
ScienceDaily (2009-11-23) -- Search engine technology is in a state of flux as it digs ever deeper for new meaning.
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Hard training may reduce fertility in women
ScienceDaily (2009-11-23) -- Are you a female athlete -- or just someone who likes challenging workouts -- who also wants to get pregnant? It may make sense to ease off a bit as you try to get pregnant. New research shows that the body may not have enough energy to support both hard workouts and getting pregnant.
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Some germs are good for you: Surface bacteria maintain skin's healthy balance
ScienceDaily (2009-11-23) -- On the skin's surface, bacteria are abundant, diverse and constant, but inflammation is undesirable. New research now shows that the normal bacteria living on the skin surface trigger a pathway that prevents excessive inflammation after injury.
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Children who suffer physical or emotional abuse may be faced with accelerated cellular aging as adults
ScienceDaily (2009-11-23) -- Researchers have determined that children who suffer physical or emotional abuse may be faced with accelerated cellular aging as adults.
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Deep-sea world beyond sunlight: Explorers census 17,650 ocean species on edge of black abyss
ScienceDaily (2009-11-23) -- Scientists have inventoried an astonishing abundance, diversity and distribution of deep sea species that have never known sunlight -- creatures that somehow manage a living in a frigid black world down to 5000 meters (three miles) below the ocean waves.
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Sea stars bulk up to beat the heat
ScienceDaily (2009-11-23) -- A new study finds that a species of sea star stays cool using a strategy never before seen in the animal kingdom. The sea stars soak up cold sea water into their bodies during high tide as buffer against potentially damaging temperatures brought about by direct sunlight at low tide.
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Climate modeling may have missed something: Aquatic creatures mix ocean water by swimming
ScienceDaily (2009-11-23) -- Understanding mixing in the ocean is of fundamental importance to modeling climate change or predicting the effects of an El Niño on our weather. Modern ocean models primarily incorporate the effects of winds and tides. However, they do not generally take into account the mixing generated by swimming animals.
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How the brain filters out distracting thoughts to focus on a single bit of information
ScienceDaily (2009-11-23) -- Researchers in Norway have discovered a mechanism that the brain uses to filter out distracting thoughts to focus on a single bit of information.
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Marine Life Stirs Ocean Enough To Affect Climate, Study Says
ScienceDaily (2006-10-15) -- Oceanographers worldwide pay close attention to phytoplankton and with good reason. The microscopic plants that form the vast foundation of the marine food chain generate a staggering amount of power, and now a groundbreaking study led by Florida State University in Tallahassee, Fla., has calculated just how much ---- about five times the annual total power consumption of the human world.
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Jellyfish And Other Small Sea Creatures Linked To Large-scale Ocean Mixing
ScienceDaily (2009-07-29) -- Using a combination of theoretical modeling, energy calculations, and field observations, researchers have for the first time described a mechanism that explains how some of the ocean's tiniest swimming animals can have a huge impact on large-scale ocean mixing.
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Satellites Spot Mighty Mississippi -- In The Atlantic
ScienceDaily (2005-09-19) -- Scientists using satellite imagery found that at least 23 percent of the water released from the mouth of the Mississippi River from July through September 2004 traveled quite a distance - into the Gulf of Mexico, around the Florida Keys, and into the Atlantic Ocean.
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Earth From Space: Bloom In The Baltic
ScienceDaily (2005-08-03) -- A colourful summer marine phytoplankton bloom fills much of the Baltic Sea in a new Envisat image. Phytoplankton are microscopic marine plants that drift on or near the surface of the sea, by far the most abundant type of life found in the ocean. Just like plants on land they employ green-pigmented chlorophyll for photosynthesis - the process of turning sunlight into chemical energy.
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New wound dressing, full of antibiotics, dissolves when wound has healed
ScienceDaily (2009-11-23) -- Scientists have developed a new wound dressing, based on innovative fibers that can be loaded with antibiotics, then dissolve when the healing process is completed.
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lunes, 23 de noviembre de 2009
Scientists find molecular trigger that helps prevent aging and disease
ScienceDaily (2009-11-23) -- Researchers set out to address a question that has been challenging scientists for years: How does dietary restriction produce protective effects against aging and disease? And the reverse: how does overconsumption accelerate age-related disease? An answer lies in a worm study that examines how the two ends of the spectrum influence biochemical responses.
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viernes, 20 de noviembre de 2009
When East meets West: Why consumers turn to alternative medicine
ScienceDaily (2009-11-20) -- Alternative health remedies are increasingly important in the health care marketplace. A new study explores how consumers choose among the many available remedies.
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Building the smart home wirelessly
ScienceDaily (2009-11-19) -- Like the paperless office, the smart home has been a long time coming, but a new article suggests that radio tags coupled with mobile communications devices could soon provide seamless multimedia services to the home.
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Lyme disease vaccine? Tick saliva found to protect mice from Lyme disease
ScienceDaily (2009-11-19) -- A protein found in the saliva of ticks helps protect mice from developing Lyme disease, researchers have discovered. The findings may spur development of a new vaccine against infection from Lyme disease, which is spread through tick bites.
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Studies suggest males have more personality
ScienceDaily (2009-11-19) -- Males have more pronounced personalities than females across a range of species -- from humans to house sparrows -- according to new research. Consistent personality traits, such as aggression and daring, are also more important to females when looking for a mate than they are to males. A new article draws together a range of studies to reveal the role that sexual selection plays in this disparity between males and females.
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Cousins of prehistoric supercrocodile inhabit lost world of Sahara
ScienceDaily (2009-11-19) -- Fossils of five ancient crocs, including one with teeth like boar tusks and another with a snout like a duck's bill, have been discovered in the Sahara. The five crocs, three of them newly named species, were part of the bizarre world of crocs that inhabited the southern land mass known as Gondwana some 100 million years ago.
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Surgeon 'glues' the breastbone together after open-heart surgery
ScienceDaily (2009-11-19) -- An innovative method is being used to repair the breastbone after it is intentionally broken to provide access to the heart during open-heart surgery. The technique uses a state-of-the-art adhesive that rapidly bonds to bone and accelerates the recovery process. This procedure has been performed on over 20 patients as part of a pilot study. Doctors aim to apply the technique in over 500 patients across the globe over the next 12-24 months.
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Baby's sleep position is the major factor in 'flat-headedness'
ScienceDaily (2009-11-19) -- A baby's sleep position is the best predictor of a misshapen skull condition known as deformational plagiocephaly -- or the development of flat spots on an infant's head -- according to a new article.
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'Hobbits' are a new human species, according to statistical analysis of fossils
ScienceDaily (2009-11-19) -- Researchers have confirmed that Homo floresiensis is a genuine ancient human species and not a descendant of healthy humans dwarfed by disease. Using statistical analysis on skeletal remains of a well-preserved female specimen, researchers determined the "hobbit" to be a distinct species and not a genetically flawed version of modern humans.
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Accidental discovery produces durable new blue pigment for multiple applications
ScienceDaily (2009-11-19) -- An accidental discovery has apparently solved a quest that over thousands of years has absorbed the energies of ancient Egyptians, the Han dynasty in China, Mayan cultures and more -- the creation of a near-perfect blue pigment.
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Centuries-old Maya Blue Mystery Finally Solved
ScienceDaily (2008-02-28) -- Anthropologists have discovered how the ancient Maya produced an unusual, widely studied blue pigment that was used in offerings, pottery, murals and other contexts across Mesoamerica from A.D. 300 to 1500. Production of the renowned, extremely stable pigment was part of ritual sacrifices at Chichén Itzá.
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Is 80-year-old mistake leading to first species to be fished to extinction?
ScienceDaily (2009-11-19) -- A species of common skate is to become the first marine fish species to be driven to extinction by commercial fishing, due to an error of species classification 80 years ago.
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Oceans' uptake of human-made carbon may be slowing
ScienceDaily (2009-11-19) -- The oceans play a key role in regulating climate, absorbing more than a quarter of the carbon dioxide that humans put into the air. Now, the first year-by-year accounting of this mechanism during the industrial era suggests the oceans are struggling to keep up with rising emissions -- a finding with potentially wide implications for future climate.
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jueves, 12 de noviembre de 2009
Avatars Can Surreptitiously And Negatively Affect User In Video Games, Virtual Worlds
ScienceDaily (2009-11-11) -- Although often seen as an inconsequential feature of digital technologies, one's self-representation, or avatar, in a virtual environment can affect the user's thoughts, according to new research.
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Star Trek-like Replicator? Electron Beam Device Makes Metal Parts, One Layer At A Time
ScienceDaily (2009-11-11) -- A group of engineers working on a novel manufacturing technique at NASA's Langley Research Center in Hampton, Va., have come up with a new twist on the popular old saying about dreaming and doing: "If you can slice it, we can build it." That's because layers mean everything to the environmentally-friendly construction process called Electron Beam Freeform Fabrication, or EBF3, and its operation sounds like something straight out of science fiction.
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Skunk's Strategy Not Just Black And White
ScienceDaily (2009-11-11) -- Predators with experience of skunks avoid them both because of their black-and-white coloration and their distinctive body shape, a new study has found.
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Foreign Subtitles Improve Speech Perception
ScienceDaily (2009-11-11) -- You can improve your second-language listening ability by watching the movie with subtitles -- as long as these subtitles are in the same language as the film. Subtitles in one's native language, the default in some European countries, may actually be counter-productive to learning to understand foreign speech, according to a new study.
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Why Nice Guys Usually Get The Girls
ScienceDaily (2009-11-11) -- For the insects called water striders, the pushiest guys don't always get the girls. New research provides support for the theory of multi-level selection and contradicts previous laboratory experiments that suggested that the most aggressive males are the most successful at reproducing.
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miércoles, 11 de noviembre de 2009
Embryonic Stem Cell Therapy Restores Walking Ability In Rats With Neck Injuries
ScienceDaily (2009-11-10) -- The first human embryonic stem cell treatment approved by the FDA for human testing has been shown to restore limb function in rats with neck spinal cord injuries -- a finding that could expand the clinical trial to include people with cervical damage.
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Antarctica Glacier Retreat Creates New Carbon Dioxide Store; Has Beneficial Impact On Climate Change
ScienceDaily (2009-11-10) -- Large blooms of tiny marine plants called phytoplankton are flourishing in areas of open water left exposed by the recent and rapid melting of ice shelves and glaciers around the Antarctic Peninsula. This remarkable colonization is having a beneficial impact on climate change. As the blooms die back phytoplankton sinks to the sea-bed where it can store carbon for thousands or millions of years.
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Pain In The Neck: Too Much Texting Could Lead To Overuse Injuries
ScienceDaily (2009-11-10) -- College age students text the most, preferring it to calls or e-mail. However, new research is suggesting that the copious amounts of texting could lead to overuse injuries -- once only reserved for older adults who have spent years in front of a computer.
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Cell Phones Become Handheld Tools For Global Development
ScienceDaily (2009-11-11) -- Computer scientists are using Android, the open-source mobile operating system championed by Google, to transform a cell phone into a flexible data-collection tool. Their free suite of tools, named Open Data Kit, is already used by organizations around the world that need inexpensive ways to gather information in areas with little infrastructure.
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Controversial New Climate Change Data: Is Earth's Capacity To Absorb CO2 Much Greater Than Expected?
ScienceDaily (2009-11-11) -- New data show that the balance between the airborne and the absorbed fraction of carbon dioxide has stayed approximately constant since 1850, despite emissions of CO2 having risen from about 2 billion tons a year in 1850 to 35 billion tons a year now. This suggests that terrestrial ecosystems and the oceans have a much greater capacity to absorb CO2 than had been previously expected.
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martes, 10 de noviembre de 2009
Blood Test Identifies Women At Risk From Alzheimer's
ScienceDaily (2009-11-09) -- Middle-aged women with high levels of a specific amino acid in their blood are twice as likely to suffer from Alzheimer's many years later, reveals new research from Sweden. This discovery this could lead to a new and simple way of determining who is at risk long before there are any signs of the illness.
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Why Do Animals, Especially Males, Have So Many Different Colors?
ScienceDaily (2009-11-09) -- Why do so many animal species -- including fish, birds and insects -- display such rich diversity in coloration and other traits? New research offers an answer.
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Organ Regeneration In Zebrafish: Unraveling The Mechanisms
ScienceDaily (2009-11-10) -- The search for the holy grail of regenerative medicine -- the ability to "grow back" a perfect body part when one is lost to injury or disease -- has been under way for years, yet the steps involved in this seemingly magic process are still poorly understood. Now researchers have identified an essential cellular pathway in zebrafish that paves the way for limb regeneration by unlocking gene expression patterns last seen during embryonic development.
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lunes, 9 de noviembre de 2009
For Improving Early Literacy, Reading Comics Is No Child's Play
ScienceDaily (2009-11-06) -- A professor of library and information science says that comic books are just as sophisticated as other forms of literature, and children benefit from reading them at least as much as they do from reading other types of books.
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Seafloor Fossils Provide Clues To Climate Change
ScienceDaily (2009-11-08) -- Deep under the sea, a fossil the size of a sand grain is nestled among a billion of its closest dead relatives. Known as foraminifera, these complex little shells of calcium carbonate can tell you the sea level, temperature, and ocean conditions of Earth millions of years ago. That is, if you know what to look for.
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viernes, 6 de noviembre de 2009
A bad mood can help you think more clearly
A recent Australian study has found that being sad has positive side effects, including making people less gullible, improving the ability to judge others and boosting memory.
Creating Cultured Pearls From The Queen Conch: Scientists Unlock Mystery
ScienceDaily (2009-11-05) -- In their natural form, conch pearls are among the rarest pearls in the world. For more than 25 years, all attempts at culturing pearls from the queen conch have been unsuccessful -- until now. For the first time, novel and proprietary seeding techniques to produce beaded and non-beaded high-quality cultured pearls from the queen conch have been developed by scientists.
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Paleoecologists Offer New Insight Into How Climate Change Will Affect Organisms
ScienceDaily (2009-11-05) -- New research examines some of the potential problems with current prediction methods and calls for the use of a range of approaches when predicting the impact of climate change on organisms. The study uses examples from recent paleoecological studies to highlight how climate variability of the past has affected the distributions of tree species, and even how events that occurred many centuries ago still shape present-day distributions patterns.
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Chart Junk? How Pictures May Help Make Graphs Better
ScienceDaily (2009-11-05) -- Those oft-maligned, and highly embellished, graphs and charts in newspapers may actually help people understand data more effectively than traditional graphs, according to new research.
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Green Tea Shows Promise As Chemoprevention Agent For Oral Cancer
ScienceDaily (2009-11-05) -- Green tea extract has shown promise as cancer prevention agent for oral cancer in patients with a pre-malignant condition known as oral leukoplakia, according to researchers.
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Babies' Language Learning Starts From The Womb
ScienceDaily (2009-11-05) -- From their very first days, newborns' cries already bear the mark of the language their parents speak, reveals a new study. The findings suggest that infants begin picking up elements of what will be their first language in the womb, and certainly long before their first babble or coo.
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Parents Just Don't Understand: Role Of Parental Control In Western And East Asian Countries
ScienceDaily (2009-11-06) -- Recent studies investigating the question of parental control in the west and in east Asian countries suggest that extreme meddling by parents can have negative effects on their children's psychological development in both of those regions, although the effects may not be uniform.
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Internet Search Process Affects Cognition, Emotion
ScienceDaily (2009-11-05) -- Researchers have found that readers were better able to understand, remember and emotionally respond to material found through "searching" compared to content found while "surfing." "If, as these data suggest, the cognitive and emotional impact of online content is greatest when acquired by searching, then Web site sponsors might consider increasing their advertising on pages that tend to be accessed via search engines," said one of the researchers.
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jueves, 5 de noviembre de 2009
Poor Start Between A Class And Its Teacher Almost Impossible To Rectify
ScienceDaily (2009-11-04) -- The relationship between a teacher and class is important for the learning achievement of pupils and their pleasure in learning. A Dutch researcher discovered that these teacher-class relationships are very stable over the course of a school year. Consequently if teachers get off to a bad start, it is almost impossible to put things right.
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Blood Vessels Might Predict Prostate Cancer Behavior
ScienceDaily (2009-11-04) -- A study of 572 men with localized prostate cancer suggests that size and shape of tumor blood vessels may predict whether the tumor will grow aggressively and require immediate treatment or grow slowly and allow therapy and its risks to be safely delayed. Aggressive prostate tumors tend to have blood vessels that are small, irregular and primitive in cross-section, while slow-growing or indolent tumors have blood vessels that look more normal.
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Tags Reveal White Sharks Have Neighborhoods In The North Pacific
ScienceDaily (2009-11-04) -- A tracking study of white sharks in the northeastern Pacific Ocean shows they adhere to a rigid route of migration across the sea, returning to precisely the same spot along the California coast each time they come back, according to a team of researchers. Over time, this behavior has made the population in the northeastern Pacific genetically distinct from other white shark populations.
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Liquid Granite: Building Material Of The Future Unveiled
ScienceDaily (2009-11-04) -- Scientists have developed a new building material that is fire resistant to temperatures in excess of 1100 degrees Celsius, is made largely from recycled material and is as versatile as concrete.
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Obesity Significantly Cuts Odds Of Successful Pregnancy, Study Finds
ScienceDaily (2009-11-04) -- Obese women are as much as 28 percent less likely to become pregnant and have a successful pregnancy, according to new research.
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Improved Human, Object Detection Technology With New Computer Software
ScienceDaily (2009-11-04) -- When searching for basketball videos online, a long list of Web sites appears, which may contain a picture or a word describing a basketball. But what if the computer could search inside videos for a basketball? Researchers are developing software that would enable computers to search inside videos, detect humans and specific objects, and perform other video analysis tasks.
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Coffee May Protect Against Breast Cancer, Study Shows
ScienceDaily (2008-04-25) -- Depending on which variant of a certain gene a woman has, a coffee consumption rate of at least two-three cups a day can either reduce the total risk of developing breast cancer or delay the onset of cancer, according to new research. The effect of coffee is related to estrogens, female sex hormones. Certain metabolic products of these hormones are known to be carcinogenic, and various components of coffee can alter the metabolism so that a woman acquires a better configuration of various estrogens. What's more, coffee contains caffeine, which also hampers the growth of cancer cells.
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Coffee's Aroma Kick-starts Genes In The Brain
ScienceDaily (2008-06-16) -- Drink coffee to send a wake-up call to the brain? Or just smell its rich, warm aroma? An international group of scientists is reporting some of the first evidence that simply inhaling coffee aroma alters the activity of genes in the brain.
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Coffee And Nighttime Jobs Don't Mix, Study Finds
ScienceDaily (2009-11-04) -- Night-shift workers should avoid drinking coffee if they wish to improve their sleep, according to recent research. A new study has found the main byproduct of coffee, caffeine, interferes with sleep and this side-effect worsens as people age.
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Engineers Strive To Make Algae Oil Production More Feasible
ScienceDaily (2009-11-04) -- Engineers are assessing systematic production methods that could make the costs of algae oil production more reasonable, helping move the U.S. from fossil fuel dependency to renewable energy replacements.
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Three Killer Indicators Identified That Are Even Worse Than High Cholesterol
ScienceDaily (2009-11-04) -- Researchers in the UK have identified a particular combination of health problems that can double the risk of heart attack and cause a three-fold increase in the risk of mortality.
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Folic Acid Supplements Linked To Asthma, Study Suggests
ScienceDaily (2009-11-04) -- A new study may have shed light on the rise in childhood asthma in developed countries like Australia in recent decades. Researchers have identified a link between folic acid supplements taken in late pregnancy and allergic asthma in children aged between 3 and 5 years, suggesting that the timing of supplementation in pregnancy is important.
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Learning To Talk Changes How Speech Is Heard: 'Sound Of Learning' Unlocked By Linking Sensory And Motor Systems
ScienceDaily (2009-11-04) -- Learning to talk also changes the way speech sounds are heard, according to a new study. The findings could have a major impact on improving speech disorders.
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Protecting Your Virtual Privacy: A Closer Look At Digital And Internet Security
ScienceDaily (2009-11-04) -- The details of your personal life, such as grocery purchases and pizza topping preferences, are collected every day -- online and by club and discount cards from the gym, department store and supermarket. Though this data seems innocent enough, when it's put together it can tell a whole lot about your health, finances and behavior. That information, researchers remind us, could eventually be used against you.
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Green Is Cool, But US Land Changes Generally Are Not
ScienceDaily (2009-11-04) -- Most land use changes occurring in the continental US result in raised regional surface temperatures, according to new research. The study found that almost any change that makes land cover less "green" contributes to warming. A perhaps less intuitive finding is that conversion of any land to agricultural use results in cooling, even land that was previously forested.
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Hydrogen Peroxide Marshals Immune System
ScienceDaily (2009-06-04) -- Using the zebrafish as an animal model, researchers have discovered that the body uses hydrogen peroxide to sound the alarm when a tissue has been injured. As a direct result of this hydrogen-peroxide red alert, white blood cells come to the aid of the wounded site.
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FDA Warns Consumers Against Drinking High-Strength Hydrogen Peroxide For Medicinal Use
ScienceDaily (2006-07-30) -- The U.S. Food and Drug Administration (FDA) is warning consumers not to purchase or to use high-strength hydrogen peroxide products, including a product marketed as "35 Percent Food Grade Hydrogen Peroxide," for medicinal purposes because they can cause serious harm or death when ingested. FDA recommends that consumers who are currently using high-strength hydrogen peroxide stop immediately and consult their health care provider.
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Why Hair Turns Gray Is No Longer A Gray Area: Our Hair Bleaches Itself As We Grow Older
ScienceDaily (2009-02-24) -- Wash away your gray? Maybe. Scientists have now solved a mystery that has perplexed humans throughout the ages: why we turn gray. These researchers show that going gray is caused by a massive build up of hydrogen peroxide due to wear and tear of our hair follicles. The peroxide winds up blocking the normal synthesis of melanin, our hair's natural pigment.
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Not Just Bleach: Hydrogen Peroxide May Tell Time For Living Cells
ScienceDaily (2009-11-04) -- The common household chemical hydrogen peroxide, also made naturally by living cells, appears to be involved in regulation of circadian rhythms, according to a new study.
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Calm Before The Spawn: Climate Change And Coral Spawning
ScienceDaily (2009-11-04) -- Biologists have explained why corals spawn for just a few nights in some places but elsewhere string out their love life over many months. A new study shows that corals spawn when regional wind fields are light. When it is calm, the eggs and sperm have the chance to unite before they are dispersed.
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Timber Harvest Impacts Amphibians Differently During Life Stages
ScienceDaily (2009-11-04) -- Researchers found that removing all of the trees from a section of the forest had a negative effect on amphibians during their later life cycles, but had some positive effects during amphibians' aquatic larva stages at the beginning of their lives. To lessen the negative effects during the later life stage, scientists recommend partial or selection cuts to forests rather than completely removing trees from an area.
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Eating Quickly Is Associated With Overeating, Study Indicates
ScienceDaily (2009-11-04) -- According to a new study, eating a meal quickly, as compared to slowly, curtails the release of hormones in the gut that induce feelings of being full. The decreased release of these hormones, can often lead to overeating.
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Vast Right Arm Conspiracy? Study Suggests Handedness May Affect Body Perception
ScienceDaily (2009-11-05) -- There are areas in the brain devoted to our arms, legs, and various parts of our bodies. The way these areas are distributed throughout the brain are known as "body maps" and there are some significant differences in these maps between left- and right-handed people. Now there is evidence that these maps may influence how we perceive our physical bodies.
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History In 3-D: Digitally Archived Works Of Art
ScienceDaily (2009-11-05) -- Three-dimensional computer graphics is moving into museums. Works of art are being digitally archived in 3-D, simplifying research into related artifacts and providing the public with fascinating three-dimensional displays.
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Common Plants Can Eliminate Indoor Air Pollutants
ScienceDaily (2009-11-05) -- Air quality in homes and offices is becoming a major health concern. Volatile organic compounds (VOCs) found in indoor air emanate from adhesives, furnishings, clothing, and solvents and have been shown to cause illnesses in people. Researchers tested ornamental indoor plants for their ability to remove harmful VOCs from indoor air. The study concluded that simply introducing common ornamental plants into indoor spaces has the potential to significantly improve the quality of indoor air.
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