Today's Science News

Monday, March 10, 2014

Featured Research

from universities, journals, and other organizations

First Animals Oxygenated Earth's Oceans, Study Suggests

Mar. 9, 2014 — The evolution of the first animals may have oxygenated Earth's oceans -- contrary to the traditional view that a rise in oxygen triggered their development. New research contests the long held ... full story

Four New Human-Made Ozone Depleting Gases Found in the Atmosphere

Mar. 9, 2014 — Scientists at the University of East Anglia have identified four new human-made gases in the atmosphere -- all of which are contributing to the destruction of the ozone layer. New research reveals ... full story

Blood Test Identifies Those at-Risk for Cognitive Decline, Alzheimer's Within Three Years

Mar. 9, 2014 — A blood test that can predict with greater than 90 percent accuracy if a healthy person will develop mild cognitive impairment or Alzheimer's disease within three years has been discovered and ... full story

Mystery of Planet-Forming Disks Explained by Magnetism

Mar. 7, 2014 — Astronomers say that magnetic storms in the gas orbiting young stars may explain a mystery that has persisted since before 2006. Researchers using NASA's Spitzer Space Telescope to study ... full story

Icy Wreckage Discovered in Nearby Planetary System

Mar. 6, 2014 — Astronomers have discovered the splattered remains of comets colliding together around a nearby star. The researchers believe they are witnessing the total destruction of one of these icy bodies once ... full story

Aerosols from Human Activities Tend to Weaken Hurricanes and Cyclones

Mar. 10, 2014 — Aerosols in the atmosphere produced from human activities do indeed directly affect a hurricane or tropical cyclone, but not in a way many scientists had previously believed. In fact, they tend to ... full story

Spread of Antibiotic Resistance Understood by Unravelling Bacterial Secretion System

Mar. 9, 2014 — The system that allows the sharing of genetic material between bacteria -- and therefore the spread of antibiotic resistance -- has been uncovered by a team of scientists. Understanding the structure ... full story

Sun's Energy Influences 1,000 Years of Natural Climate Variability in North Atlantic

Mar. 9, 2014 — Changes in the sun's energy output may have led to marked natural climate change in Europe over the last 1,000 years, according to researchers. The study found that changes in the sun's ... full story

New Class of Antibiotics Discovered by Chemists

Mar. 7, 2014 — A new class of antibiotics to fight bacteria such as methicillin-resistant Staphylococcus aureus and other drug-resistant bacteria that threaten public health has been discovered by a team of ... full story

NASA's WISE Survey Finds Thousands of New Stars, but No 'Planet X'

Mar. 7, 2014 — After searching hundreds of millions of objects across our sky, NASA's Wide-Field Infrared Survey Explorer (WISE) has turned up no evidence of the hypothesized celestial body in our solar system ... full story

Squeezing Light Into Metals: Engineers Control Conductivity With Inkjet Printer

Mar. 7, 2014 — Using an inexpensive inkjet printer, electrical engineers produced microscopic structures that use light in metals to carry information. This new technique, which controls electrical conductivity ... full story

Preschoolers Can Outsmart College Students at Figuring out Gizmos

Mar. 6, 2014 — Preschoolers can be smarter than college students at figuring out how unusual toys and gadgets work because they're more flexible and less biased than adults in their ideas about cause and ... full story

Europe May Experience Higher Warming Than Global Average

Mar. 6, 2014 — The majority of Europe will experience higher warming than the global average if surface temperatures rise to 2 degrees C above pre-industrial levels, according to a new ... full story

Birds Display Lateralization Bias When Selecting Flight Paths

Mar. 6, 2014 — Flocks of birds manage to navigate through difficult environments by individuals having predispositions to favor the left- or right-hand side. Researchers flew the budgerigars down a tunnel where ... full story

Warmer Temperatures Push Malaria to Higher Elevations

Mar. 6, 2014 — Researchers have debated for more than two decades the likely impacts, if any, of global warming on the worldwide incidence of malaria, a mosquito-borne disease that infects more than 300 million ... full story

Featured Videos

from AP, Reuters, AFP, and other news services
New Blood Test Could Predict Alzheimer's 3 Years In Advance

New Blood Test Could Predict Alzheimer's 3 Years In Advance

Newsy (Mar. 9, 2014) — Researchers say a simple blood test can tell the difference between seniors who will develop Alzheimer's within three years and those who won't. Video provided by Newsy
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Newly Discovered Dinosaur Is Largest Predator Ever

Newly Discovered Dinosaur Is Largest Predator Ever

Newsy (Mar. 6, 2014) — Researchers say the Torvosaurus Gurneyi, a newly identified dino, stood at a frightening 33 feet with 4 inch blades for molars. Video provided by Newsy
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Alzheimer's Could Be Third Leading Cause Of Death

Alzheimer's Could Be Third Leading Cause Of Death

Newsy (Mar. 6, 2014) — A new study suggests Alzheimer's might be the cause of nearly 500,000 deaths per year. That is six times the number reported by the government. Video provided by Newsy
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Hubble Telescope Captures Asteroid Breaking Itself Apart

Hubble Telescope Captures Asteroid Breaking Itself Apart

Newsy (Mar. 6, 2014) — For the first time, the Hubble Telescope managed to get images of an asteroid breaking into 10 pieces in space. Video provided by Newsy
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last updated on 2014-03-10 at 1:18 pm EDT

Top Health News

jump to:    Health  |  Tech  |  Enviro  |  Society

Healthy Eating May Reduce the Risk of Preterm Delivery

Mar. 10, 2014 — In a new study, participants completed a scientifically evaluated questionnaire about what they had been eating and drinking since becoming pregnant. The results show that the group of women with the ... full story

Smokers' Brains Biased Against Negative Images of Smoking

Mar. 10, 2014 — What if the use of a product influenced your perception of it, making you even more susceptible to its positive aspects and altering your understanding of its drawbacks? This is precisely what ... full story

Dropped Your Toast? Five-Second Food Rule Exists, New Research Suggests

Mar. 10, 2014 — Food picked up just a few seconds after being dropped is less likely to contain bacteria than if it is left for longer periods of time, according to new research. The findings suggest there may be ... full story

Lower IQ and Poorer Cardiovascular Fitness in Teen Years Increase Risk of Early-Onset Dementia

Mar. 10, 2014 — Men who at the age of 18 years have poorer cardiovascular fitness and/or a lower IQ more often suffer from dementia before the age of 60. This is shown in a recent study encompassing more than one ... full story

Mutations in Leukemia Gene Linked to New Childhood Growth Disorder

Mar. 9, 2014 — Mutations in a gene associated with leukemia cause a newly described condition that affects growth and intellectual development in children, new research reports. A study identified mutations in the ... full story

Stem Cell Study Opens Door to Undiscovered World of Biology

Mar. 9, 2014 — For the first time, researchers have shown that an essential biological process known as protein synthesis can be studied in adult stem cells -- something scientists have long struggled to ... full story

New Tool to Unravel Mysteries of Metastasis Created

Mar. 9, 2014 — Kinases are proteins that play vital roles in disease, but scientists have struggled to study how they interact in real time. A team of scientists has now developed a new technique to make these ... full story

Combined Use of Oxytocin and Human Chorionic Gonadotropin in Intractable Pain Patients

Mar. 8, 2014 — Two hormones credited with reducing pain and need for opioid analgesics when released naturally during pregnancy and childbirth worked similarly when administered simultaneously to patients with ... full story

Stem Cell Transplant Shows 'Landmark' Promise for Treatment of Degenerative Disc Disease

Mar. 8, 2014 — Stem cell transplant was viable and effective in halting or reversing degenerative disc disease of the spine, a meta-analysis of animal studies showed, in a development expected to open up research ... full story

Research on 3-D Scaffolds Sets New Bar in Lung Regeneration

Mar. 7, 2014 — For the estimated 12.7 million people with chronic obstructive pulmonary disorder, the third leading cause of death in the U.S., innovative research efforts in the field of tissue regeneration hold ... full story

Can the Blind 'Hear' Colors, Shapes? Yes, Show Researchers

Mar. 9, 2014 — What if you could “hear” colors? Or shapes? These features are normally perceived visually, but using sensory substitution devices (SSDs) they can now be conveyed to the brain noninvasively ... full story

Ever-So-Slight Delay Improves Decision-Making Accuracy

Mar. 7, 2014 — Researchers have found that decision-making accuracy can be improved by postponing the onset of a decision by a mere fraction of a second. The results could further our understanding of ... full story

The Dark Side of Fair Play: Why Would Evolution Let Spite Stick Around?

Mar. 7, 2014 — We often think of playing fair as an altru­istic behavior. We're sac­ri­ficing our own poten­tial gain to give others what they deserve. What could be more self­less than that? But new research ... full story

Anti-Psychotic Meds Offer Hope Against Brain Cancer

Mar. 7, 2014 — FDA-approved anti-psychotic drugs possess tumor-killing activity against the most aggressive form of primary brain cancer, glioblastoma, new research indicates. "The anti-glioblastoma effects of ... full story

Inherited Alzheimer's Damage Greater Decades Before Symptoms Appear

Mar. 7, 2014 — The progression of Alzheimer's may slow once symptoms appear and do significant damage, according to a study investigating an inherited form of the disease. Through an international study, ... full story

Infants Using Known Verbs to Learn New Nouns: Before Infants Begin to Talk in Sentences, They Are Paying Careful Attention to Conversations

Mar. 7, 2014 — New research demonstrates that even before infants begin to talk in sentences, they are paying careful attention to the way a new word is used in conversations, and they learn new words from this ... full story

Activity More Than Location Affects Perception of Earthquakes

Mar. 7, 2014 — A new study by Italian researchers suggests that a person's activity at the time of the quake influences their perception of shaking more than their location. Whether a person is at rest or walking ... full story

Areas of the Brain Process Read and Heard Language Differently

Mar. 7, 2014 — The brain processes read and heard language differently. Researchers have been able to determine the affected areas of the brain using speech processing tests with the aid of functional magnetic ... full story

Talking-Therapy Treatments to Manage Osteoarthritis Pain

Mar. 7, 2014 — Abnormalities in the way the brain experiences pain may be to blame for the chronic pain suffered by osteoarthritis patients, scientists have shown for the first time. As a results, the researchers ... full story

Quicker and Cheaper Toxicity Checking of Mussels

Mar. 7, 2014 — A new discovery can make it far easier to check whether mussels have gone bad. Poisonous mussels contain the extremely dangerous and paralyzing neurotoxin saxitoxin. This neurotoxin is the cause of ... full story

Pre-Term Birth Leads to Increased Risk of Asthma, Wheezing Disorders

Mar. 7, 2014 — Researchers have published findings strongly suggesting that preterm birth -- prior to 37 weeks gestation -- increases the risk of asthma and wheezing disorders during childhood, and that the risk of ... full story

BPA Linked to Breast Cancer Tumor Growth

Mar. 6, 2014 — Researchers have attempted to trace how bisphenol-A may promote breast cancer tumor growth with help from a molecule called RNA HOTAIR. "We can't immediately say BPA causes cancer growth, but it ... full story

Vitamin D Increases Breast Cancer Patient Survival, Study Shows

Mar. 6, 2014 — Breast cancer patients with high levels of vitamin D in their blood are twice as likely to survive the disease as women with low levels of this nutrient, report researchers. According to the National ... full story

Obese Adolescents Not Getting Enough Sleep?

Mar. 6, 2014 — Lack of sleep and obesity have been associated with an increased risk of cardiovascular and metabolic diseases in adults and young children. However, the association is not as clear in adolescents, ... full story

Some People Really Just Don't Like Music

Mar. 6, 2014 — It is often said that music is a universal language. However, a new report finds that music doesn't speak to everyone. There are people who are perfectly able to experience pleasure in other ways who ... full story

Are You Smarter Than a 5-Year-Old? Preschoolers Can Do Algebra

Mar. 6, 2014 — Millions of high school and college algebra students are united in a shared agony over solving for x and y, and for those to whom the answers don't come easily, it gets worse: Most preschoolers and ... full story

E-Cigarettes: Gateway to Nicotine Addiction for U.S. Teens

Mar. 6, 2014 — E-cigarettes, promoted as a way to quit regular cigarettes, may actually be a new route to conventional smoking and nicotine addiction for teenagers, according to a new study. In the first analysis ... full story

Higher Levels of Omega-3 in Diet Are Associated With Better Sleep, Study Shows

Mar. 6, 2014 — Higher levels of omega-3 DHA, the group of long-chain fatty acids found in algae and seafood, are associated with better sleep, shows a randomized, placebo-controlled study. The study finds that ... full story

Heart Failure Unknowns a Roadblock to Managing Health

Mar. 6, 2014 — Patients and their families lack basic skills and knowledge to manage a heart condition successfully, new research shows. A systematic review of 49 studies, involving more than 1,600 patients and ... full story

Addressing the Rapid Increase in Cesarean Birth Rates

Mar. 6, 2014 — A new, joint series called 'Obstetric Care Consensus' is being introduced by the American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine. The first issue ... full story

Top Physical & Tech News

jump to:    Health  |  Tech  |  Enviro  |  Society

Two-Dimensional Material Shows Promise for Optoelectronics: LEDs, Photovoltaic Cells, and Light Detectors

Mar. 10, 2014 — Team creates LEDs, photovoltaic cells, and light detectors using novel one-molecule-thick material. Researchers have used a novel material that's just a few atoms thick to create devices that can ... full story

Synthetic Biologists Shine Light on Genetic Circuit Analysis

Mar. 10, 2014 — In a significant advance for the growing field of synthetic biology, bioengineers have created a toolkit of genes and hardware that uses colored lights and engineered bacteria to bring both ... full story

Alaska the Last Frontier ... Not for Long

Mar. 10, 2014 — Alaska, the last great frontier, is being threatened by many proposals to mine an estimated 5.5 trillion tons of coal. Scientists comment on the struggle to keep Alaska ... full story

Microwave Radar Monitors Sliding Slopes: Geodesists Research in the Alps

Mar. 10, 2014 — The “Steinlehnen” slope in Northern Tyrol (Austria) started to move in 2003. Rockfalls threatened people, streets and buildings. Meanwhile, peace has returned; although the slope is merely ... full story

Biomolecular Tweezers Facilitate Study of Mechanical Force Effects on Cells and Proteins

Mar. 10, 2014 — A new type of biomolecular tweezers could help researchers study how mechanical forces affect the biochemical activity of cells and proteins. The devices use opposing magnetic and electrophoretic ... full story

Mapping Behavior of Charges in Correlated Spin-Orbit Coupled Materials: Electronic Disruption Prods Mott Insulator's Conversion to Metallic State

Mar. 10, 2014 — Physicists have mapped the inner atomic workings of a compound within the mysterious class of materials known as spin-orbit Mott insulators. The findings confirm the properties that theorists predict ... full story

Atomically Thin, Flexible, Semi-Transparent Solar Cells Created

Mar. 9, 2014 — A lot of research has been done on graphene recently -- carbon flakes, consisting of only one layer of atoms. As it turns out, there are other materials too which exhibit remarkable properties if ... full story

Promising News for Producing Fuels Through Artificial Photosynthesis

Mar. 7, 2014 — There's promising news from the front on efforts to produce fuels through artificial photosynthesis. A new study shows that nearly 90 percent of the electrons generated by a hybrid material designed ... full story

Magnetically Stimulated Flow Patterns Offer Strategy for Heat Transfer Problems

Mar. 7, 2014 — Researchers have discovered how to harness magnetic fields to create vigorous, organized fluid flows in particle ... full story

UV Light Accelerates Cancer Cells That Creep Along Outside of Blood Vessels

Mar. 7, 2014 — Deadly skin cancer (melanoma) cells spread by creeping along the outside of blood vessels: extravascular metastatic migration (EVMM). Ultraviolet light exposure accelerates EVMM in a mouse model, new ... full story

'Death Stars' in Orion Blast Planets Before They Even Form

Mar. 10, 2014 — Astronomers have studied the often deadly relationship between highly luminous O-type stars and nearby protostars in the Orion Nebula. Their data reveal that protostars within 0.1 light-years (about ... full story

Weirdness in Cosmic Web of the Universe: Faint Strings of Galaxies in Empty Space Arranged in Way Never Before Seen

Mar. 10, 2014 — Astronomers have found short strings of faint galaxies in what were previously thought to be extremely empty parts of space. The Universe is full of vast collections of galaxies that are arranged ... full story

New NASA Van Allen Probes Observations Helping to Improve Space Weather Models

Mar. 7, 2014 — Using data from NASA's Van Allen Probes, researchers have tested and improved a model to help forecast what's happening in the radiation environment of near-Earth space -- a place seething with ... full story

Plasma Plumes Help Shield Earth from Damaging Solar Storms

Mar. 6, 2014 — Scientists have identified a plasma plume that naturally protects the Earth against solar storms. Earth's magnetic field, or magnetosphere, stretches from the planet's core out into space, where it ... full story

Storing Extra Rocket Fuel in Space for Future Missions?

Mar. 6, 2014 — Future lunar missions may be fueled by gas stations in space, according to engineers: A spacecraft might dock at a propellant depot, somewhere between the Earth and the moon, and pick up extra rocket ... full story

Hubble Witnesses an Asteroid Mysteriously Disintegrating

Mar. 6, 2014 — The NASA/ESA Hubble Space Telescope has photographed the never-before-seen break-up of an asteroid, which has fragmented into as many as ten smaller pieces. Although fragile comet nuclei have been ... full story

Catalog of Massive Stars: Only One on Two Million Qualify

Mar. 6, 2014 — Only one in two million stars in our galactic environment is of type O, a category that includes stars with anywhere between sixteen and more than one hundred solar masses, and luminosities millions ... full story

New Robotic Refueling Technologies Tested

Mar. 5, 2014 — NASA has successfully concluded a remotely controlled test of new technologies that would empower future space robots to transfer hazardous oxidizer -- a type of propellant -- into the tanks of ... full story

A Small Step Toward Discovering Habitable Earths

Mar. 5, 2014 — For the first time, astronomers have used the same imaging technology found in a digital camera to take a picture of a planet far from our solar system with an Earth-based telescope. The ... full story

Chandra and XMM-Newton Provide Direct Measurement of Distant Black Hole's Spin

Mar. 5, 2014 — Astronomers have used NASA's Chandra X-ray Observatory and the European Space Agency's (ESA's) XMM-Newton to show a supermassive black hole six billion light years from Earth is spinning extremely ... full story

Smartphones Become 'Eye-Phones' With Low-Cost Devices

Mar. 7, 2014 — Researchers have developed two inexpensive adapters that enable a smartphone to capture high-quality images of the front and back of the eye. The adapters make it easy for anyone with minimal ... full story

Software Analyzes Apps for Malicious Behavior

Mar. 7, 2014 — Apps on web-enabled mobile devices can be used to spy on their users. Computer scientists have developed software that shows whether an app has accessed private data. To accomplish this, the program ... full story

Crystals Ripple in Response to Light: First Propagating Surface Phonon Polaritons in a Van Der Waals Crystal

Mar. 6, 2014 — Minuscule waves that propagate across atom -- thin layers of crystal could carry information, light, and heat in nanoscale devices. For the first time, the frequency and amplitude of these waves, ... full story

Future Electronics With Super-Efficient Hard Drives: Electricity Controls Magnetism

Mar. 6, 2014 — Researchers have demonstrated how a magnetic structure can be altered quickly in novel materials. The effect could be used in efficient hard drives of the future. Data on a hard drive is stored by ... full story

Computers Used to 'See' Neurons to Better Understand Brain Function

Mar. 6, 2014 — A study reveals new information about the motor circuits of the brain that may one day help those developing therapies to treat conditions such as stroke, schizophrenia, spinal cord injury or ... full story

Engineering Team Increases Power Efficiency for Future Computer Processors

Mar. 6, 2014 — Scientists have made major improvements in computer processing using an emerging class of magnetic materials called 'multiferroics,' and these advances could make future devices far more ... full story

Computational Tool Offers New Insight Into Key Biological Processes

Mar. 6, 2014 — Researchers have developed a computational tool designed to guide future research on biochemical pathways by identifying which components in a biological system are related to specific biochemical ... full story

Robotic Prosthesis Turns Drummer Into a Three-Armed Cyborg

Mar. 6, 2014 — Scientists have created a robotic drumming prosthesis with motors that power two drumsticks. The first stick is controlled both physically by the musicians’ arms and electronically using ... full story

New Research Could Help Make 'Roll-Up' Digital Screens a Reality for All

Mar. 6, 2014 — New technology could make flexible electronics such as roll-up tablet computers, widely available in the near future. So far, this area of electronic design has been hampered by unreliability and ... full story

First Step Towards 'Programmable Materials': Sheet Metal That Never Rattles

Mar. 5, 2014 — Researchers have succeeded in producing a prototype of a vibration-damping material that could change the world of mechanics forever. The material of the future is not only able to damp vibrations ... full story

Top Environment News

jump to:    Health  |  Tech  |  Enviro  |  Society

Scents and Sustainability: Renewable Sources for Artificial Scents and Flavors

Mar. 10, 2014 — Fresh banana, a waft of flowers, blueberry: the scents in some labs are a little sweeter than most. Researchers are engineering bacteria to make esters -- molecules widely used as scents and ... full story

Combination of Sensory Signals Draw Mosquitoes in for a Bite

Mar. 9, 2014 — It may seem like mosquitoes will bite anything with a pulse, but they're actually quite strategic in picking their victims. A new study looked at the interaction of different sensory cues -- carbon ... full story

'Tree of Life' Distances Are No Shortcut to Conservation

Mar. 9, 2014 — Some conservation strategies assume that the evolutionary distances between species on a phylogenetic 'tree of life' (a branching diagram of species popularized by Charles Darwin) can be used to ... full story

In Grasslands Remade by Humans, Animals May Protect Biodiversity: Grazers Let in the Light, Rescue Imperiled Plants

Mar. 9, 2014 — A study of grasslands on six continents suggests a way to counteract the human-made overdose of fertilizer that threatens the biodiversity of the world's prairies. The solution originates in nature: ... full story

Deer Proliferation Disrupts a Forest's Natural Growth

Mar. 8, 2014 — Researchers have discovered that a burgeoning deer population forever alters the progression of a forest's natural future by creating environmental havoc in the soil and disrupting the soil's natural ... full story

Personalized Treatment Prolongs the Life of Lung Cancer Patients

Mar. 7, 2014 — Mexican scientists have increased survival rates for patients diagnosed with lunch cancer in metastatic stage (when the disease has spread to different parts of the body) from a rate of nine months ... full story

Over Demanding Market Affects Fisheries More Than Climate Change

Mar. 7, 2014 — Fisheries that rely on short life species, such as shrimp or sardine, have been more affected by climate change, because this phenomenon affects chlorophyll production, which is vital for ... full story

New Theory on Cause of Endometriosis

Mar. 7, 2014 — Changes to two previously unstudied genes are the centerpiece of a new theory regarding the cause and development of endometriosis, a chronic and painful disease affecting one in 10 women. The ... full story

Hospital Food Safety Measures Reduce Risk of Contaminated Hospital Food

Mar. 7, 2014 — A new study found more than 80 percent of raw chicken used in hospitals in food for patients and staff was contaminated with a form of antibiotic resistant bacteria called extended-spectrum ... full story

Genome of Sesame Sheds New Light on Oil Biosynthesis

Mar. 7, 2014 — Researchers have successfully cracked the genome of high oil content crop sesame, providing new lights on the important stages of seed development and oil accumulation, and potential key genes for ... full story

That Sinking Feeling: NASA Radar Demonstrates Ability to Foresee Sinkholes

Mar. 7, 2014 — New analyses of NASA airborne radar data collected in 2012 reveal the radar detected indications of a huge sinkhole before it collapsed and forced evacuations near Bayou Corne, La., that year. The ... full story

Europe's Largest Badger Study Finds Rare Long-Distance Movements

Mar. 7, 2014 — European badgers can make journeys of more than 20km -- distances longer than previously thought –- researchers have found. The study could help design more effective interventions to reduce the ... full story

Urbanization Exposes French Cities to Greater Seismic Risk

Mar. 7, 2014 — French researchers have looked into data mining to develop a method for extracting information on the vulnerability of cities in regions of moderate risk, creating a proxy for assessing the probable ... full story

Urgent Need to Study Impacts of Biomass Burning and Haze on Marine Ecosystems in Southeast Asia

Mar. 7, 2014 — Crop residue and forests are burnt in many tropical countries to clear land for agriculture. In Indonesia, annual biomass burning activities cause a widespread smoke-haze phenomenon that affects ... full story

Traffic-Related Air Pollution Associated With Changes in Right Ventricular Structure, Function

Mar. 7, 2014 — Exposure to high levels of traffic-related air pollution is associated with changes in the right ventricle of the heart that may contribute to the known connection between air pollution exposure and ... full story

How River Networks Move Across a Landscape

Mar. 6, 2014 — Large river networks -- such as those that funnel into the Colorado and Mississippi rivers -- may seem to be permanent features of a landscape. In fact, many rivers define political boundaries that ... full story

Warming Temperatures Are Pushing Two Chickadee Species -- And Their Hybrids -- Northward

Mar. 6, 2014 — The zone of overlap between two popular, closely related backyard birds is moving northward at a rate that matches warming winter temperatures, according to a study. In a narrow strip that runs ... full story

Earth's Mantle Plasticity Explained: Missing Mechanism for Deforming Olivine-Rich Rocks

Mar. 6, 2014 — The Earth's mantle is a solid layer that undergoes slow, continuous convective motion. But how do these rocks deform, thus making such motion possible, given that minerals such as olivine (the main ... full story

Japanese Town: Half the Survivors of Mega-Earthquake, Tsunami, Have PTSD Symptoms

Mar. 6, 2014 — A new study shows that more than half the survivors in one Japanese town exhibited 'clinically concerning' symptoms of PTSD following the country's mega-earthquake and tsunami. Two-thirds of ... full story

Santorini Tree Rings Support the Traditional Dating of the Volcanic Eruption

Mar. 6, 2014 — Will the dating of the volcanic eruption of Santorini remain an unsolved mystery? The question whether this natural disaster occurred 3,500 or 3,600 years ago is of great historiographical importance ... full story

New Insights Into Ancient Pacific Settlers' Diet: Diet Based on Foraging, Not Horticulture

Mar. 5, 2014 — Researchers studying 3,000-year-old skeletons from the oldest known cemetery in the Pacific Islands are casting new light on the diet and lives of the enigmatic Lapita people, the likely ancestors of ... full story

New Dinosaur Found in Portugal, Largest Terrestrial Predator from Europe

Mar. 5, 2014 — A new dinosaur species found in Portugal may be the largest land predator discovered in Europe, as well as one of the largest carnivorous dinosaurs from the Jurassic. T. gurneyi had blade-shaped ... full story

Pigment or Bacteria? Researchers Re-Examine the Idea of 'Color' in Fossil Feathers

Mar. 5, 2014 — Paleontologists studying fossilized feathers propose that the shapes of certain microscopic structures inside the feathers can tell us the color of ancient birds. But new research shows that it is ... full story

Shadows of Petra Awaken Its Astronomical Orientation

Mar. 5, 2014 — During the winter solstice, the sun is filtered into the Monastery at Petra, Jordan, illuminating the podium of a deity. Just at this moment, the silhouette of the mountain opposite draws the head of ... full story

Convergent Evolution: New Fins Evolve Repeatedly in Teleost Fishes

Mar. 5, 2014 — A new study analyzing the origins of the adipose fin, thought by some to be vestigial, finds that these fins arose repeatedly and independently in multiple species -- a striking example of convergent ... full story

Sea-Level Rise Threatens UNESCO World Heritage Sites

Mar. 4, 2014 — Some of the world's most recognizable and important landmarks could be lost to rising sea-levels if current global warming trends are maintained over the next two millennia. This is according to a ... full story

Prequel Outshines the Original: Exceptional Fossils of 160-Million-Year-Old Doahugou Biota

Mar. 4, 2014 — A new article shows that several Jurassic sites are linked together by shared species and can be recognized as representing a single fossil fauna and flora, containing superbly preserved specimens of ... full story

How Apes and Humans Evolved Side by Side

Mar. 4, 2014 — In a new book, a paleoanthropologist incorporates his research with a synthesis of a vast amount of research from other scientists who study primate evolution and behavior. The book explains how apes ... full story

Native American City on the Mississippi Was America's First 'Melting Pot'

Mar. 4, 2014 — New evidence establishes for the first time that Cahokia, a sprawling, pre-Columbian city situated at the confluence of the Missouri and Mississippi rivers, hosted a sizable population of immigrants. ... full story

30,000 Year-Old Giant Virus Found in Siberia

Mar. 4, 2014 — A new type of giant virus called "Pithovirus" has been discovered in the frozen ground of extreme north-eastern Siberia. Buried underground, this giant virus, which is harmless to humans and animals, ... full story

Top Society & Education News

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Love or Kill Thy Neighbor? New Study Into Animal Social Behavior

Mar. 6, 2014 — A theoretical study has shed new light on the conditions that lead to the evolution of spite or altruism in structured populations. Understanding the way in which social behaviors such as altruism -- ... full story

Human Activity Influences Beach Bacterial Diversity

Mar. 5, 2014 — Human activity influences ocean beach bacterial communities, and bacterial diversity may indicate greater ecological health and resiliency to sewage contamination. Beaches all contain bacteria, but ... full story

Long-Lasting Device Protects Against HIV, Pregnancy

Mar. 5, 2014 — Women's reproductive health may never be the same, thanks to a biomedical engineer and his first-of-its-kind intravaginal ring that reliably delivers an antiretroviral drug and a contraceptive for ... full story

Advertisements Telling Smokers 'Why' to Quit More Successful Than 'How' Messages

Mar. 4, 2014 — Brief exposure to anti-smoking television ads with messages about why to quit smoking can influence a smoker to quit within a month, while ads about how to quit smoking do not influence smoking ... full story

New School Meal Standards Significantly Increase Fruit, Vegetable Consumption

Mar. 4, 2014 — New federal standards launched in 2012 that require schools to offer healthier meals have led to increased fruit and vegetable consumption, according to a new study. The study, the first to examine ... full story

Blasts May Cause Brain Injury Even Without Symptoms: Veteran Study

Mar. 3, 2014 — Veterans exposed to explosions who do not report symptoms of traumatic brain injury (TBI) may still have damage to the brain's white matter comparable to veterans with TBI, according to researchers. ... full story

Largest-Ever Study of Mental Health Risk, Resilience in Army Personnel Releases Findings

Mar. 3, 2014 — Most mental health disorders and suicidal ideation among U.S. Army soldiers start before enlistment, according to findings of the largest-ever study of mental health risk in army personnel. Three new ... full story

Increasing Homogeneity of World Food Supplies Warns of Serious Implications for Farming and Nutrition

Mar. 3, 2014 — A comprehensive new study of global food supplies confirms and thoroughly documents for the first time what experts have long suspected: over the last five decades, human diets around the world have ... full story

In Academia, Men More Likely to Cooperate With Lower-Ranked Colleagues

Mar. 3, 2014 — Women of different social or professional 'ranks' cooperate less well with each other than men do, according to a new study. With those they see as equals, the study found no difference between the ... full story

Yosemite Bears and Human Food: Study Reveals Changing Diets Over Past Century

Mar. 3, 2014 — Black bears in Yosemite National Park and elsewhere are notorious for seeking out human food, even breaking into cars and cabins for it. A new study reveals just how much human food has contributed ... full story

Using a Treadmill While Working Can Boost Employee Productivity, Study Finds

Mar. 4, 2014 — Walking while you work may not only improve an employee's health, it may also boost productivity, according to new research. Researchers studied employees using treadmills instead of office chairs as ... full story

Google Glass Could Help Stop Emerging Public Health Threats Around the World

Feb. 27, 2014 — The much-talked-about Google Glass -- the eyewear with computer capabilities -- could potentially save lives, especially in isolated or far-flung locations, say scientists. They are reporting ... full story

Warning: Your Open-Plan Office Can Make You Ill

Feb. 25, 2014 — Don’t blame other commuters if you catch a cold this winter: blame the people who designed your office. According to a study, workplace layout has a surprising effect on rates of sick leave. After ... full story

Portable Hydrogen Fuel Cell Unit to Provide Green, Sustainable Power to Honolulu Port

Feb. 25, 2014 — Clean hydrogen power that’s expected to lower emissions and reduce energy consumption will be coming to the Port of Honolulu in 2015 after the completion of a new fuel cell technology ... full story

Gauging What It Takes to Heal a Disaster-Ravaged Forest: Case Study in China

Feb. 24, 2014 — Recovering from natural disasters usually means rebuilding infrastructure and reassembling human lives. Yet ecologically sensitive areas need to heal, too, and scientists are pioneering new methods ... full story

Will Plug-in Cars Crash the Electric Grid? Not With Newly Proposed System

Feb. 21, 2014 — The world’s growing fleet of plug-in cars will put strain on aging electrical distribution systems. Now research presents a solution: to prevent the electric grid from crashing, break-up requests ... full story

New York Takes Lead in State Efforts to End Ivory Trade

Feb. 20, 2014 — A bill introduced into the New York State Legislature proposing a sweeping ban on the sale of ivory in New York State, Assembly bill A8824, has been welcomed by the Wildlife Conservation Society. ... full story

Sustainable Manufacturing System to Better Consider the Human Component

Feb. 20, 2014 — Engineers have developed a new approach toward 'sustainable manufacturing' that begins on the factory floor and tries to encompass the totality of manufacturing issues -- including economic, ... full story

Rise of the Compliant Machines: Sociable Humanoids Could Help Advance Human-Robot Interaction

Feb. 20, 2014 — Are we on the brink of a robotics revolution? That's what numerous media outlets asked last December when Google acquired eight robotics companies that specialize in such innovations as manipulation, ... full story

Stress Hormones in Financial Traders May Trigger 'Risk Aversion,' Contribute to Market Crises

Feb. 17, 2014 — High levels of the stress hormone cortisol may contribute to the risk aversion and ‘irrational pessimism’ found among bankers and fund managers during financial crises, according to a new study. ... full story

Zoos, Aquariums Do Teach Us About Biodiversity, Largest International Study Proves

Mar. 3, 2014 — Zoos and aquariums do teach the public about the delicate balance between animal species and their habitats, a new international study shows. More than 6,000 visitors to over 30 zoos and aquariums ... full story

Education Attenuates Impact of TBI on Cognition

Feb. 28, 2014 — Higher educational attainment (a proxy of intellectual enrichment) attenuates the negative impact of traumatic brain injury on cognitive status, new research indicates. Said one researcher of the ... full story

Can an App Help Make Life Easier for Children With ADHD?

Feb. 28, 2014 — We have tended to associate welfare technology with support for the elderly. Now researchers are looking at whether technology such as digital calendars and smartwatches can also provide support for ... full story

Father's Age Tied to Higher Rates of Psychiatric, Academic Problems in Kids

Feb. 26, 2014 — Advancing paternal age can lead to higher rates of psychiatric and academic problems in offspring than previously estimated. Compared to a children born to a 24-year-old father, children born to a ... full story

Why Breastfed Babies Are So Smart: Moms Who Breastfeed Are Often Responsive and Read to Their Babies

Feb. 26, 2014 — Research has shown that children who were breastfed score higher on IQ tests and perform better in school, but the reason why remained unclear. Now a new study shows that two parenting skills deserve ... full story

Virtual Computer-Based World an Effective Learning Environment for Healthcare Education, Study Shows

Feb. 26, 2014 — Researchers have demonstrated the potential of using a virtual computer environment for distance healthcare education for an international audience that often has limited access to conventional ... full story

New Autism Definition May Decrease Diagnosis by One Third

Feb. 26, 2014 — New diagnosis guidelines for autism spectrum disorder may reduce by almost one third the total number of people being diagnosed, according to new research. The guidelines, released in May 2013 and ... full story

Prevalence of High School Seniors' Marijuana Use Is Expected to Increase With Legalization

Feb. 25, 2014 — Large proportions of high school students normally at low risk for marijuana use (e.g., non-cigarette-smokers, religious students, those with friends who disapprove of use) reported intention to use ... full story

The Musical Brain: Novel Study of Jazz Players Shows Common Brain Circuitry Processes Both Music, Language

Feb. 19, 2014 — The brains of jazz musicians engrossed in spontaneous, improvisational musical conversation showed robust activation of brain areas traditionally associated with spoken language and syntax, which are ... full story

In Fight Against Teen Prescription Drug Abuse, Home and School-Based Programs Work in Combination

Feb. 18, 2014 — Programs that aim to curb teen prescription drug abuse have vastly differing success rates, ranging from big drops in drug abuse to no measurable effect, says a new study. The best results came from ... full story

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