Today's Science News

Friday, March 7, 2014

Featured Research

from universities, journals, and other organizations

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

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, ... 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

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 ... 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 ... 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

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 ... 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 ... 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

Alzheimer's Disease Much Larger Cause of Death Than Reported, Study Shows

Mar. 5, 2014 — Alzheimer’s disease may contribute to close to as many deaths in the United States as heart disease or cancer, a new study suggests. Currently, Alzheimer's disease falls sixth on the list of ... full story

Personalized Gene Therapy Locks out HIV, Paving the Way to Control Virus Without Antiretroviral Drugs

Mar. 5, 2014 — The immune cells of 12 HIV positive patients have been successfully genetically engineered by researchers to resist infection, and decrease the viral loads of some patients taken off antiretroviral ... 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

Featured Videos

from AP, Reuters, AFP, and other news services
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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Stonehenge: Built For Music?

Stonehenge: Built For Music?

Newsy (Mar. 6, 2014) — Researchers out of London's Royal College of Art say some bluestones, the rock found in the earliest stone circle, make musical tunes. Video provided by Newsy
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last updated on 2014-03-07 at 10:53 am EST

Top Health News

jump to:    Health  |  Tech  |  Enviro  |  Society

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

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

Reducing Wait Times Could Improve Spinal Cord Stimulator Success for Chronic Pain

Mar. 6, 2014 — Success rates soared to 75% for patients who waited less than 2 years for a spinal cord stimulator (SCS) implant, compared with 15% for patients whose implants happened 20 years after the onset of ... full story

Drug Protects Mice Against Malaria Brain Damage, Raises Levels of BDNF in Humans

Mar. 6, 2014 — Cerebral malaria is a serious complication of infection with the malaria parasite, affecting approximately one in a thousand children in areas where malaria is common. Many of the patients die, and ... full story

Fighting for Survival in the Gut: Unravelling the Hidden Variation in Bacteria

Mar. 6, 2014 — Our intestines harbor an astronomical number of bacteria, around 100 times the number of cells in our body, known as the gut microbiota. These bacteria belong to thousands of species that co-exist, ... full story

Kawasaki Disease and Pregnant Women

Mar. 6, 2014 — In the first study of its type, researchers have looked at the health threat to pregnant women with a history of Kawasaki disease (KD), concluding that the risks are low with informed management and ... 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

Marijuana's Anxiety Relief Effects: Receptors Found in Emotional Hub of Brain

Mar. 6, 2014 — Cannabinoid receptors, through which marijuana exerts its effects, have been found in a key emotional hub in the brain involved in regulating anxiety and the flight-or-fight response. This is the ... full story

Detailed Picture Created of Membrane Protein Linked to Learning, Memory, Anxiety, Pain and Brain Disorders

Mar. 6, 2014 — The most detailed 3-D picture yet has been created of a membrane protein linked to learning, memory, anxiety, pain and brain disorders such as schizophrenia, Parkinson’s, Alzheimer’s and autism. ... full story

Combatting Hospital-Acquired Infections With Protein Metal Complex

Mar. 6, 2014 — A protein containing a metal complex for blue paint inhibits growth of a pathogenic bacterium through iron deprivation. Scientists have found a new method using an artificial metalloprotein (a ... 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 person's activity at the time of an earthquake influences their perception of shaking more than their ... 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

Mothers Leave Work Because They Don't Want to Behave Like Working Men, Study Suggests

Mar. 7, 2014 — Middle-class working mothers are leaving work because they are unwilling to behave like men, according to a new research article. Many of the interviewed women found it hard to combine work and ... full story

'Seeing' Bodies With Sound (No Sight Required)

Mar. 6, 2014 — People born unable to see are readily capable of learning to perceive the shape of the human body through soundscapes that translate images into sound, according to researchers. With a little ... 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

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

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

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

Energy Drinks Linked to Teen Health Risks

Mar. 6, 2014 — The uplifting effects of energy drinks are well advertised, but a new report finds consumption among teenagers may be linked with poor mental health and substance use. The researchers found that high ... 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

Eating Red, Processed Meat: What Scientists Say

Mar. 6, 2014 — Recent reports warn about a link between eating red and processed meat and the risk of developing cancer in the gut. These reports have resulted in new nutritional recommendations that advise people ... full story

Atypical Development in Siblings of Children With Autism Is Detectable at 12 Months

Mar. 5, 2014 — Atypical development can be detected as early as 12 months of age among the siblings of children with autism spectrum disorder, a study has found. 28 percent of children with older siblings with ASD ... 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

Some Metallic Toys, Low-Cost Jewelry Present Health Risks for Young Children

Mar. 5, 2014 — We know that babies and young children often put non-food items in their mouths, a behavior that occasionally leads to swallowing of foreign objects. Metallic toys and low-cost jewelry often contain ... full story

A Wristband for a Different Kind of Cause ... Environmental Health

Mar. 5, 2014 — From 'Livestrong' to 'Purple Paws,' trendy wristbands have come to represent causes from cancer to ending cruelty to animals. Add a new wristband of a different sort: one that could close the loop on ... full story

Your Face Says It All? Not So Fast

Mar. 5, 2014 — New research calls into question the very foundations of emotion science. It's a con­cept that had become uni­ver­sally under­stood: humans expe­ri­ence six basic emotions -- happiness, ... full story

Determination Might Be a Very Human Expression

Mar. 5, 2014 — Humans might be using facial expressions of determination as a call for help from others, according to new research. When children and chimpanzees were both given a task that was impossible to solve, ... full story

Passive Smoking Causes Irreversible Damage to Children's Arteries

Mar. 4, 2014 — Exposure to passive smoking in childhood causes irreversible damage to the structure of children’s arteries, according to a study. The study is the first to follow children through to adulthood in ... full story

Top Physical & Tech News

jump to:    Health  |  Tech  |  Enviro  |  Society

Interactive Simulator for Vehicle Drivers

Mar. 7, 2014 — Maximize mileage, safety, or operating life? Driving behavior behind the wheel has a big influence on the vehicle. Researchers have developed a driving simulator designed to make the 'human factor' ... 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

Colored Diamonds Are a Superconductor's Best Friend

Mar. 6, 2014 — Nitrogen-vacancy centers -- flaws in a diamond's crystal lattice that produce color -- have received much attention for their sensitivity to magnetic fields. Researchers have now used N-V diamond ... 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

Smart Nanofibers to Treat Kidney Failure

Mar. 6, 2014 — A simple way to treat kidney failure. A new technique for purifying blood using a nanofiber mesh could prove useful as a cheap, wearable alternative to kidney ... 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

Going Nuclear -- In a Small Way

Mar. 6, 2014 — New research has provided a comprehensive overview of new small-scale nuclear reactors, which could be suitable candidates to cope with the world’s ever growing demand for energy. According to ... 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

Extraordinary Momentum and Spin Discovered in Evanescent Light Waves

Mar. 6, 2014 — Researchers have identified unexpected dynamic properties of a type of light wave called evanescent waves. These surprising findings contrast sharply with previous knowledge about light and ... 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

First Light for MUSE: Powerful 3-D Spectrograph Successfully Installed on Very Large Telescope

Mar. 5, 2014 — A new innovative instrument called MUSE (Multi Unit Spectroscopic Explorer) has been successfully installed on ESO's Very Large Telescope at the Paranal Observatory in northern Chile. MUSE has ... 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

'Dimer Molecules' Aid Study of Exoplanet Pressure, Hunt for Life

Mar. 4, 2014 — Astronomers have developed a new method of gauging the atmospheric pressure of exoplanets, or worlds beyond the solar system, by looking for a certain type of molecule. And if there is life out in ... full story

Bright Pulses of Light Could Make Space Veggies More Nutritious

Mar. 4, 2014 — Exposing leafy vegetables grown during spaceflight to a few bright pulses of light daily could increase the amount of eye-protecting nutrients produced by the plants, according to a new ... full story

Spiral Galaxy Spills Blood and Guts

Mar. 4, 2014 — A new Hubble image shows spiral galaxy ESO 137-001, framed against a bright background as it moves through the heart of galaxy cluster Abell 3627. This cluster is violently ripping the spiral's ... full story

Researchers Propose a New Way to Detect the Elusive Graviton

Mar. 4, 2014 — A cosmologist and a physicist have proposed that measuring minute changes in the cosmic background radiation of the universe could be a pathway of detecting the telltale effects of ... full story

Standard-Candle Supernovae Are Still Standard, but Why?

Mar. 4, 2014 — Scientists believed that Type Ia supernovae, the best cosmological standard candles, are similar in brightness because they suffer thermonuclear explosions when the white dwarf stars that are their ... 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

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

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

Ultra Sensitive Detection of Radio Waves With Lasers

Mar. 5, 2014 — Radio waves are used for many measurements and applications, for example, in communication with mobile phones, MRI scans, scientific experiments and cosmic observations. But 'noise' in the detector ... full story

Seeking Quantum-Ness: D-Wave Chip Passes Rigorous Tests

Mar. 5, 2014 — D-Wave quantum processor passes tests indicating that it uses special laws of quantum mechanics to operate. A key task for researchers has been to determine whether D-Wave processors operate as hoped ... full story

Copied from Nature: Detecting Software Errors Via Genetic Algorithms

Mar. 5, 2014 — Software developers are spending about the half of their time detecting errors and resolving them. Projected onto the global software industry, this would amount to a bill of about 312 billion US ... full story

Security Tools for Industry 4.0

Mar. 5, 2014 — An increasing number of unsecured, computer-guided production machinery and networks in production facilities are gradually evolving into gateways for data theft. New security technologies may ... full story

New Technique Targets C Code to Spot, Contain Malware Attacks

Mar. 4, 2014 — Researchers have developed a new tool to detect and contain malware that attempts root exploits in Android devices. The tool improves on previous techniques by targeting code written in the C ... full story

Novel Quantum Dot Laser Paves the Way for Lower-Cost Photonics

Mar. 4, 2014 — With the explosive growth of bandwidth demand in telecommunications networks, experts are continually seeking new ways to transmit increasingly large amounts of data in the quickest and cheapest ways ... full story

Top Environment News

jump to:    Health  |  Tech  |  Enviro  |  Society

Genome of Sesame Sheds New Lights 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

Teen Elephant Mothers Die Younger but Have Bigger Families

Mar. 7, 2014 — Asian elephants that give birth as teenagers die younger than older mothers but raise bigger families during their lifetime, according to new ... 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

Common Mutation Is Culprit in Acute Leukemia Relapse

Mar. 6, 2014 — Stem cell scientists have identified a mutation in human cases of acute lymphoblastic leukemia that likely drives relapse. The research could translate into improved patient care strategies for this ... 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

Birds of All Feathers and Global Flu Diversity

Mar. 6, 2014 — Scientists have completed the first global inventory of flu strains in birds by reviewing more than 50 published studies and genetic data, providing new insight into the drivers of viral diversity ... full story

Testis Size Matters for Genome Evolution

Mar. 6, 2014 — Scientists used a sequence dataset from 55 species of primates to test for a correlation between molecular evolutionary rates across a genome (substitution rates) and testes weights, used in the ... full story

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

Elephant Age Estimated from Voice: A Powerful Conservation Tool?

Mar. 6, 2014 — Researchers have been able to estimate the age of an elephant based on its vocal sounds. Results showed that they could distinguish infants, calves, juveniles, and adults with 70 percent accuracy and ... full story

Maize and Bacteria: A One-Two Punch Knocks Copper out of Stamp Sand

Mar. 5, 2014 — Scientists are working toward a simple, practical way to remediate mine waste laced with copper and other toxic elements. And they are shedding light on the inner workings of the plants and bacteria ... 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

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

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

Look Back at US Soybeans Shows Genetic Improvement Behind Increased Yields

Mar. 5, 2014 — Soybean improvement through plant breeding has been critical over the years for the success of the crop. In a new study that traces the genetic changes in varieties over the last 80 years of soybean ... 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

The Eurasian Lynx as a Key to the Conservation and Future Viability of the Endangered Iberian Lynx

Mar. 5, 2014 — Understanding the mechanisms which control reproduction in lynx is essential for their continued viability and effective conservation. Scientists discovered that the Corpus luteum of the Eurasian ... full story

Study Suggests Non-Uniform Climate Warming Globally

Mar. 5, 2014 — A recent study of five decades of satellite data, model simulations and in situ observations suggests the impact of seasonal diurnal or daily warming varies between global regions affecting many ... full story

First-Ever 3-D Image Created of the Structure Beneath Sierra Negra Volcano

Mar. 5, 2014 — The Galápagos Islands are home to some of the most active volcanoes in the world, with more than 50 eruptions in the last 200 years. Yet until recently, scientists knew far more about the history of ... full story

Warm Rivers Play Role in Arctic Sea Ice Melt

Mar. 5, 2014 — The heat from warm river waters draining into the Arctic Ocean is contributing to the melting of Arctic sea ice each summer, a new NASA study ... full story

A Single Gene, Doublesex, Controls Wing Mimicry in Butterflies

Mar. 5, 2014 — A single gene regulates the complex wing patterns, colors and structures required for mimicry in swallowtail butterflies, report scientists. Surprisingly, the gene described, doublesex, is already ... 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

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

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

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

Unmasking the Secrets of the Extinct Moa

Mar. 3, 2014 — Researchers have used a DNA barcoding technique in an attempt to clarify the number of species which existed of the extinct New Zealand moa. The challenges of understanding extinct fauna can be ... full story

Large Mammals Were the Architects in Prehistoric Ecosystems

Mar. 3, 2014 — Elephants, rhinoceroses and aurochs once roamed around freely in the forests of Europe, while hippopotamuses lived in rivers such as the Thames and the Rhine. New research shows how we can use ... full story

Sardis Dig Yields Enigmatic Trove: Ritual Egg in a Pot

Mar. 3, 2014 — The ruins of Sardis have been a rich source of knowledge about classical antiquity since the 7th century B.C., when the city was the capital of Lydia. Now, Sardis has given up another treasure in the ... full story

Top Society & Education News

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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

Humans Responsible for 62% of Cougar Deaths in Re-Established Populations

Mar. 3, 2014 — The reintroduction of mountain lions across the mid-western United States has made species management an urgent area of research for conservationists. A new report explores the fatal cost of human ... full story

Black Hawks Downed: Bird Threat to U.S. Military Helicopters Revealed

Mar. 3, 2014 — Rotary-wing aircraft, such as Apache and Chinook helicopters, play vital combat and logistical roles across the U.S. military services, but new research reveals how vulnerable these aircraft are to ... 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

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

First Large-Scale Study of Stock Market Volatility, Mental Disorders

Feb. 13, 2014 — Falling stock prices lead to increased hospitalizations for mental disorders, according to new research. Researchers assessed the relationship between stock price movements and mental disorders using ... full story

Waste from Age-Old Paper Industry Becomes New Source of Solid Fuel

Feb. 12, 2014 — In today's search for renewable energy sources, researchers are turning to the hi-tech, from solar and hydrogen fuel cells, and the very low-tech. The latest example of a low-tech alternative comes ... 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

Frequent School Moves Can Increase the Risk of Psychotic Symptoms in Early Adolescence

Feb. 18, 2014 — Researchers have shown that frequently changing schools during childhood can increase the risk of psychotic symptoms in later years. Scientists found that school mobility during childhood heightens ... full story

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