Today's Science News

Tuesday, September 30, 2014

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Simulations Reveal an Unusual Death for Ancient Stars

Sep. 29, 2014 — Certain primordial stars -- between 55,000 and 56,000 times the mass of our sun, or solar masses -- may have died unusually. In death, these objects -- among the universe's first generation of ... full story

'Cloaking' Device Uses Ordinary Lenses to Hide Objects Across Range of Angles

Sep. 29, 2014 — Inspired perhaps by Harry Potter's invisibility cloak, scientists have recently developed several ways -- some simple and some involving new technologies -- to hide objects from view. The latest ... full story

Human Genome Was Shaped by an Evolutionary Arms Race With Itself

Sep. 28, 2014 — An evolutionary arms race between rival elements within the genomes of primates drove the evolution of complex regulatory networks that orchestrate the activity of genes in every cell of our bodies, ... full story

New Molecule Found in Space Connotes Life Origins

Sep. 26, 2014 — Hunting from a distance of 27,000 light years, astronomers have discovered an unusual carbon-based molecule contained within a giant gas cloud in interstellar space. The discovery suggests that the ... full story

Earth's Water Is Older Than the Sun: Likely Originated as Ices That Formed in Interstellar Space

Sep. 25, 2014 — Water was crucial to the rise of life on Earth and is also important to evaluating the possibility of life on other planets. Identifying the original source of Earth's water is key to ... full story

Cassini Watches Mysterious Feature Evolve in Hydrocarbon Sea on Saturn's Moon Titan

Sep. 29, 2014 — NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a large hydrocarbon sea on Saturn's moon Titan. The feature covers an area of about 100 square miles (260 ... full story

Ancient Human Genome from Southern Africa Throws Light on Our Origins

Sep. 29, 2014 — The skeleton of a man who lived 2,330 years ago in the southernmost tip of Africa tells us about ourselves as humans, and throws some light on our earliest common genetic ancestry. The man's ... full story

Dolphins Are Attracted to Magnets: Add Dolphins to the List of Magnetosensitive Animals, French Researchers Say

Sep. 29, 2014 — Add dolphins to the list of magnetosensitive animals, French researchers say. Dolphins are indeed sensitive to magnetic stimuli, as they behave differently when swimming near magnetized ... full story

Smart, Eco-Friendly New Battery Made of Seeds and Pine Resin

Sep. 29, 2014 — Present-day lithium batteries are efficient but involve a range of resource and environmental problems. Using materials from alfalfa (lucerne seed) and pine resin and a clever recycling strategy, ... full story

Signature of Aging in Brain: Researchers Suggest That the Brain's 'Immunological Age' Is What Counts

Sep. 29, 2014 — Evidence of a unique 'signature' that may be the 'missing link' between cognitive decline and aging has been found by researchers. The scientists believe that this discovery may ... full story

Pneumonia Bacterium Leaves Tiny Lesions in the Heart, Study Finds

Sep. 25, 2014 — The long-observed association between pneumonia and heart failure now has more physical evidence, thanks to research. The researchers found proof that Streptococcus pneumoniae, the leading cause of ... full story

Tooth Buried in Bone Shows Prehistoric Predators Tangled Across Land, Sea

Sep. 29, 2014 — Before dinosaurs, it was thought the top aquatic and terrestrial predators didn't often interact. But researchers have discovered that the smaller of the two apex predators was potentially ... full story

Mimicking Brain Cells to Boost Computer Memory Power

Sep. 29, 2014 — Researchers have brought ultra-fast, nano-scale data storage within striking reach, using technology that mimics the human brain. The researchers have built a novel nano-structure that offers a new ... full story

Secret to Raising Well Behaved Teens? Maximize Their Zzzzz's

Sep. 26, 2014 — While American pediatricians warn sleep deprivation can stack the deck against teenagers, a new study reveals youth’s irritability and laziness aren’t down to attitude problems but lack of sleep. ... full story

No Sign of Health or Nutrition Problems from GMO Livestock Feed, Study Finds

Sep. 26, 2014 — A new review study finds there is no evidence in earlier scientific studies indicating that genetically engineered feed crops harmed the health or productivity of livestock and poultry, and that food ... full story

Featured Videos

from AP, Reuters, AFP, and other news services

This 'Invisibility Cloak' Is Simpler Than Most

This 'Invisibility Cloak' Is Simpler Than Most

Newsy (Sep. 28, 2014) — Researchers from the University of Rochester have created a type of invisibility cloak with simple focal lenses. Video provided by Newsy
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The Water You Drink Might Be Older Than The Sun

The Water You Drink Might Be Older Than The Sun

Newsy (Sep. 27, 2014) — Researchers at the University of Michigan simulated the birth of planets and our sun to determine whether water in the solar system predates the sun. Video provided by Newsy
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Water Discovery On Small Planet Could Be Key To Earth 2.0

Water Discovery On Small Planet Could Be Key To Earth 2.0

Newsy (Sep. 25, 2014) — Scientists have discovered traces of water in the atmosphere of a distant, Neptune-sized planet. Video provided by Newsy
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Japan Showcases Cheerleading Robots

Japan Showcases Cheerleading Robots

AFP (Sep. 25, 2014) — A team of cheerleading robots make their dancing debut in Tokyo as creator Murata Manufacturing demonstrates its cutting-edge sensor technology. Duration: 01:17 Video provided by AFP
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last updated on 2014-09-30 at 6:38 am EDT

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An Apple a Day Could Keep Obesity Away

Sep. 29, 2014 — Nondigestible compounds in apples -- specifically, Granny Smith apples -- may help prevent disorders associated with obesity, scientists have concluded. "We know that, in general, apples are a good ... full story

Brief Depression Questionnaires Could Lead to Unnecessary Antidepressant Prescriptions

Sep. 29, 2014 — Short questionnaires used to identify patients at risk for depression are linked with antidepressant medications being prescribed when they may not be needed, according to new research. Known as ... full story

'Deadly Diarrhea' Rates Nearly Doubled in 10 Years: Study

Sep. 29, 2014 — Infections with the intestinal superbug C. difficile nearly doubled from 2001 to 2010 in US hospitals without noticeable improvement in patient mortality rates or hospital lengths of stay, according ... full story

Childhood Asthma Linked to Lack of Ventilation for Gas Stoves

Sep. 29, 2014 — Parents with children at home should use ventilation when cooking with a gas stove, researchers are recommending, after a new study showed an association between gas kitchen stove ventilation and ... full story

Sweat-Eating Bacteria May Improve Skin Health

Sep. 29, 2014 — Bacteria that metabolize ammonia, a major component of sweat, may improve skin health and some day could be used for the treatment of skin disorders, such as acne or chronic wounds. Human volunteers ... full story

Healthy Fats Help Diseased Heart Muscle Process, Use Fuel

Sep. 29, 2014 — Oleate, a common dietary fat found in olive oil, restored proper metabolism of fuel in an animal model of heart failure, researchers report. Heart failure affects nearly 5 million Americans, and more ... full story

Sleep Twitches Light Up the Brain

Sep. 29, 2014 — A new study finds twitches during rapid eye movement sleep comprise a different class of movement, which researchers say is further evidence that sleep twitches activate circuits throughout the ... full story

Spastic Paraplegia: New Light Shed on Cause

Sep. 29, 2014 — A gene mutation linked to hereditary spastic paraplegia, a disabling neurological disorder, interferes with the normal breakdown of triglyceride fat molecules in the brain, scientists have found. The ... full story

Rising Prevalence of Sleep Apnea in US Threatens Public Health

Sep. 29, 2014 — Public health and safety are threatened by the increasing prevalence of obstructive sleep apnea, which now afflicts at least 25 million adults in the US, according to experts. Several new studies ... full story

DNA Signature Found in Ice Storm Babies: Prenatal Maternal Stress Exposure to Natural Disasters Predicts Epigenetic Profile of Offspring

Sep. 29, 2014 — The number of days an expectant mother was deprived of electricity during Quebec's Ice Storm in 1998 predicts the epigenetic profile of her child, a new study ... full story

Single-Neuron 'Hub' Orchestrates Activity of an Entire Brain Circuit

Sep. 29, 2014 — New research makes a major contribution to efforts to navigate the brain, offering a precise model of the organization of developing neuronal circuits. If researchers can further identify the ... full story

Protein That Causes Frontotemporal Dementia Also Implicated in Alzheimer's Disease

Sep. 29, 2014 — Low levels of the naturally occurring protein progranulin exacerbate cellular and cognitive dysfunction, while raising levels can prevent abnormalities in an Alzheimer's ... full story

Hand Size Appears to Stay Constant, Providing Natural 'Ruler'

Sep. 29, 2014 — People tend to perceive their dominant hand as staying relatively the same size even when it's magnified, lending support to the idea that we use our hand as a constant perceptual 'ruler' to measure ... full story

Cells from Placentas Safe for Patients With Multiple Sclerosis, Study Shows

Sep. 29, 2014 — Patients with Multiple Sclerosis (MS) were able to safely tolerate treatment with cells cultured from human placental tissue, according to a study. “This is the first time placenta-derived cells ... full story

Children With Autism More Sedentary Than Their Peers, Study Shows

Sep. 26, 2014 — Children with autism are more sedentary than their typically-developing peers, a study shows, averaging 50 minutes less a day of moderate physical activity and 70 minutes more each day ... full story

Unexpected Clue to Peripheral Neuropathies Found

Sep. 26, 2014 — Disrupting the molecular function of a tumor suppressor causes improper formation of a protective insulating sheath on peripheral nerves -- leading to neuropathy and muscle wasting in mice similar to ... full story

Neuroscientists Use Morphed Images of Hollywood Celebrities to Reveal How Neurons Make Up Your Mind

Sep. 26, 2014 — Morphed images of celebrities such as Angelina Jolie, Halle Berry, Bob Marley, Sylvester Stallone, Uma Thurman, Nicole Kidman, Whoopi Goldberg, Bill Clinton and George Bush, and others were shown to ... full story

Biochemists Solve 'Address Problem' in Cells That Leads to Lethal Kidney Disease

Sep. 26, 2014 — Research published by biochemists may lead to a new treatment, or even a cure, for a rare, genetic kidney disease that afflicts children, and may provide important insights into treatments for ... full story

Exploring Connection Between Empathy, Neurohormones and Aggression

Sep. 26, 2014 — Researchers examined whether assessed or elicited empathy would lead to situation-specific aggression on behalf of another person, and to explore the potential role of two neurohormones in explaining ... full story

How Plankton Gets Jet Lagged: Hormone That Govern Sleep and Jet Lag in Humans Also Drives Mass Migration of Plankton

Sep. 26, 2014 — A hormone that governs sleep and jet lag in humans may also drive the mass migration of plankton in the ocean, scientists have found. The molecule in question, melatonin, is essential to maintain our ... full story

Scanning Babies' Fingerprints Could Save Lives Through Vaccination Tracking

Sep. 26, 2014 — Each year 2.5 million children die worldwide because they do not receive life-saving vaccinations at the appropriate time. Now researchers are developing a fingerprint-based recognition method to ... full story

How Physical Exercise Protects the Brain from Stress-Induced Depression

Sep. 25, 2014 — Physical exercise has many beneficial effects on human health, including the protection from stress-induced depression. However, until now the mechanisms that mediate this protective effect have been ... full story

Skirt Size Increase Linked to 33 Percent Greater Postmenopausal Breast Cancer Risk

Sep. 24, 2014 — Going up a skirt size over a period of 10 years between your mid 20s and mid 50s is linked to a 33 percent greater risk of developing breast cancer after menopause, finds a large observational ... full story

Better Information About Prenatal Testing Leads to Fewer Tests

Sep. 24, 2014 — When pregnant women are educated about their choices on prenatal genetic testing, the number of tests actually drops, even when the tests are offered with no out-of-pocket costs, a clinical trial has ... full story

Brain Scans Reveal 'Gray Matter' Differences in Media Multitaskers

Sep. 24, 2014 — Simultaneously using mobile phones, laptops and other media devices could be changing the structure of our brains, according to new research. People who frequently use several media devices at the ... full story

Alcohol Consumption Influenced by Genes, Research Shows

Sep. 24, 2014 — How people perceive and taste alcohol depends on genetic factors, and that influences whether they 'like' and consume alcoholic beverages, according to researchers. In the first study to show that ... full story

Higher Risk of Autism Found in Children Born at Short and Long Interpregnancy Intervals

Sep. 24, 2014 — Children who were conceived either less than 1 year or more than 5 years after the birth of their prior sibling were more likely to be diagnosed with autism than children conceived following an ... full story

Infant Cooing, Babbling Linked to Hearing Ability, Researcher Finds

Sep. 23, 2014 — Infant vocalizations are primarily motivated by infants' ability to hear their own babbling, research shows. Additionally, infants with profound hearing loss who received cochlear implants to help ... full story

Note to Young Men: Fat Doesn't Pay Well

Sep. 23, 2014 — Men who are already obese as teenagers could grow up to earn up to 18 percent less than their peers of normal weight, researchers report. The team compared extensive information from Sweden, the ... full story

Fruit and Vegetable Consumption Could Be as Good for Your Mental as Your Physical Health

Sep. 23, 2014 — New research focused on mental wellbeing found that high and low mental wellbeing were consistently associated with an individual's fruit and vegetable consumption. 33.5% of respondents with high ... full story

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New Transparent Nanoscintillators for Radiation Detection Developed

Sep. 29, 2014 — Tadiation detection properties have been identified in a light-emitting nanostructure made in a new way from two of the least expensive rare earth elements. The new material is made from two of the ... full story

Adding Uncertainty to Improve Mathematical Models

Sep. 29, 2014 — Mathematicians have introduced a new element of uncertainty into an equation used to describe the behavior of fluid flows. While being as certain as possible is generally the stock and trade of ... full story

How Things Coil: Simulation Technology Designed for Hollywood to Predict Understanding Fundamental Engineering Problems

Sep. 29, 2014 — Researchers have combined computer simulations designed for Hollywood with precision model experiments to examine the mechanics of coiling. Their study, which bridges engineering mechanics and ... full story

In-Flight Sensor Tests a Step Toward Structural Health Monitoring for Safer Flights

Sep. 29, 2014 — A flight test program is underway on nine commercial aircraft flying regular routes that are carrying sensors to monitor their structural health, alongside their routine maintenance. The flight tests ... full story

Harvesting Energy from Walking Around: Shoe Insole Charges AAA and Watch Batteries

Sep. 29, 2014 — A device that fits inside a pair of shoes harvests the energy left-over when someone walks. This energy is then stored in AAA or watch ... full story

Scientists Make Droplets Move on Their Own

Sep. 29, 2014 — Droplets are simple spheres of fluid, not normally considered capable of doing anything on their own. But now researchers have made droplets of alcohol move through water. In the future, such moving ... full story

Predicting Landslides With Light

Sep. 29, 2014 — A team of researchers in Italy are expanding the reach of optical fiber sensors 'to the hills' by embedding them in shallow trenches within slopes to detect and monitor both large landslides and slow ... full story

'Autotune' Software to Make It Quicker, Easier and Cheaper to Model Energy Use of Buildings

Sep. 29, 2014 — Building Energy Modeling uses computer simulations to estimate energy use and guide the design of new buildings as well as energy improvements to existing ... full story

Ultra-Fast Semiconductor Nano-Lasers Turn on and Off Faster Than Any Before

Sep. 29, 2014 — Physicist have develop ultra-fast semiconductor nano-lasers. One thousand billion operations per second – this peak value has now been achieved by semiconductor ... full story

Bacterial Genome Important to Fuel and Chemical Production Sequenced

Sep. 26, 2014 — Researchers sequence the entire genome of the Clostridium autoethanogenum bacterium, which is used to sustainably produce fuel and chemicals from a range of raw materials, including gases derived ... full story

Nitrogen Fingerprint in Biomolecules Could Be from Early Sun

Sep. 29, 2014 — The pattern of nitrogen in biomolecules like proteins, which differ greatly from that seen in other parts of the solar system, could have been generated by the interactions of light from the early ... full story

Glaciers in the Grand Canyon of Mars?

Sep. 29, 2014 — For decades, planetary geologists have speculated that glaciers might once have crept through Valles Marineris, the 2000-mile-long chasm that constitutes the Grand Canyon of Mars. Using satellite ... full story

NASA Rover Drill Pulls First Taste from Mars Mountain

Sep. 26, 2014 — NASA's Curiosity Mars rover has collected its first taste of the layered mountain whose scientific allure drew the mission to choose this part of Mars as a landing ... full story

Turning the Moon Into a Cosmic Ray Detector

Sep. 26, 2014 — Scientists are to turn the Moon into a giant particle detector to help understand the origin of Ultra-High-Energy (UHE) cosmic rays -- the most energetic particles in the Universe. The origin of UHE ... full story

A Galaxy of Deception: Hubble Snaps What Looks Like a Young Galaxy in the Local Universe

Sep. 25, 2014 — Astronomers usually have to peer very far into the distance to see back in time, and view the Universe as it was when it was young. This new image of galaxy DDO 68, otherwise known as UGC 5340, was ... full story

Most Metal-Poor Star Hints at Universe's First Supernovae

Sep. 24, 2014 — In a new study, researchers point out that the elemental abundance of the most iron-poor star can be explained by elements ejected from supernova explosions of the universe's first stars. This ... full story

Clear Skies on Exo-Neptune: Smallest Exoplanet Ever Found to Have Water Vapor

Sep. 24, 2014 — Astronomers have discovered clear skies and steamy water vapor on a planet outside our Solar System. The planet, known as HAT-P-11b, is about the size of Neptune, making it the smallest exoplanet ... full story

Most Stars Are Born in Clusters, Some Leave 'Home'

Sep. 24, 2014 — New modeling studies demonstrate that most of the stars we see were formed when unstable clusters of newly formed protostars broke up. These protostars are born out of rotating clouds of dust and ... full story

India's Mars Orbiter Spacecraft Successfully Inserted Into Orbit Around Red Planet

Sep. 24, 2014 — India's Mars Orbiter Spacecraft successfully entered into an orbit around the planet Mars this morning (Sept. 24, 2014) by firing its 440 Newton Liquid Apogee Motor (LAM) along with eight smaller ... full story

Solar Explosions 'Inside' a Computer: Understanding Solar Flares to Improve Predictions

Sep. 23, 2014 — Strong solar flares can bring down communications and power grids on Earth. By demonstrating how these gigantic eruptions are caused, physicists are laying the foundations for future predictions. The ... full story

Software for Automated Sorting of Genomes of Individual Microbial Species Through Metagenomes

Sep. 29, 2014 — Microbes -- the single-celled organisms that dominate every ecosystem on Earth -- have an amazing ability to feed on plant biomass and convert it into other chemical products. Tapping into this ... full story

Predicting Electric Power Outages Before They Happen

Sep. 26, 2014 — Power outages are often the result of automated protection measures that ensure power surges or downed power lines don’t injure people, damage trees, damage appliances or impact other parts of the ... full story

Football-Size Robot Can Skim Discreetly Along a Ship's Hull to Seek Hollow Compartments Concealing Contraband

Sep. 26, 2014 — Football-size robot can skim discreetly along a ship's hull to seek hollow compartments concealing ... full story

New Technology May Lead to Prolonged Power in Mobile Devices

Sep. 26, 2014 — Researchers have created technology that could be the first step toward wearable computers with self-contained power sources or, more immediately, a smartphone that doesn’t die after a few hours of ... full story

Computational Model: Ebola Could Infect More Than 1.4 Million People by End of January 2015

Sep. 26, 2014 — The Ebola epidemic could claim hundreds of thousands of lives and infect more than 1.4 million people by the end of January, according to a statistical forecast released this week by the U.S. Centers ... full story

Graphene Looks Promising as a Flexible, Low-Cost Touchscreen Solution

Sep. 26, 2014 — New research suggests that graphene-treated nanowires could soon replace current touchscreen technology, significantly reducing production costs and allowing for more affordable, flexible ... full story

Power Outage? Robots to the Rescue

Sep. 25, 2014 — Big disasters almost always result in big power failures. Not only do they take down the TV and fridge, they also wreak havoc with key infrastructure like cell towers. That can delay search and ... full story

New Discovery Could Pave Way for Spin-Based Computing: Novel Oxide-Based Magnetism Follows Electrical Commands

Sep. 25, 2014 — Electricity and magnetism rule our digital world. Semiconductors process electrical information, while magnetic materials enable long-term data storage. A research team has now discovered a way to ... full story

Putting the Squeeze on Quantum Information

Sep. 25, 2014 — Researchers have shown that information stored in quantum bits can be exponentially compressed without losing information. The achievement is an important proof of principle, and could be useful for ... full story

Yoga, Meditation May Help Train Brain to Help People Control Computers With Their Mind

Sep. 25, 2014 — People who practice yoga and meditation long term can learn to control a computer with their minds faster and better than people with little or no yoga or meditation experience, new research by ... full story

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Plants Prepackage Beneficial Microbes in Their Seeds

Sep. 29, 2014 — Plants have a symbiotic relationship with certain bacteria. These 'commensal' bacteria help the plants extract nutrients and defend against invaders -- an important step in preventing pathogens from ... full story

Climate Change Appears a Mixed Bag for Common Frog

Sep. 29, 2014 — After warmer winters, wood frogs breed earlier and produce fewer eggs, a researcher has found. The same study also found that frogs produce more eggs during winters with more rain and ... full story

On the Trail of the Truffle Flavor

Sep. 29, 2014 — Truffles, along with caviar, are among the most expensive foods in the world. Because they grow underground, people use trained dogs or pigs to find them. But the distinctive smell of truffles is not ... full story

Investigating 'Underground' Habitat of Listeria Bacteria

Sep. 29, 2014 — The literature describes Listeria as ubiquitous bacteria with widespread occurrence. Yet they only become a problem for humans and animals when they contaminate food processing facilities, multiply, ... full story

New Poison Dart Frog Species Discovered in Donoso, Panama

Sep. 26, 2014 — A bright orange poison dart frog with a unique call has been discovered in Donoso, Panama. Because this new frog species appears to be found in only a very small area, habitat loss and collecting for ... full story

Preference for Built-Up Habitats Could Explain Rapid Spread of Tree Bumblebee in UK

Sep. 26, 2014 — Tree bumblebee populations could be spreading because the bees readily live alongside humans in towns and villages. This sets the species apart from other common British bumblebees -- which could ... full story

Poor Fish Harvests More Frequent Now Off California Coast

Sep. 26, 2014 — In the past 600 years off the California coast, occasional episodes of diminished ocean upwelling that cause fish populations to crash have occurred naturally. The poor yearly fish harvests seen in ... full story

Young Sea Stars Suffer More from Ocean Acidification Than Adults

Sep. 26, 2014 — Young sea stars from the Baltic Sea suffer more from the effects of ocean acidification than adults. In a laboratory experiment, scientists showed that younger animals already eat less and grow more ... full story

High-Throughput Cell-Sorting Method Can Separate 10 Billion Bacterial Cells in 30 Minutes

Sep. 26, 2014 — A new, high-throughput method for sorting cells has been developed, capable of separating 10 billion bacterial cells in 30 minutes. The finding has already proven useful for studying bacterial cells ... full story

If Trees Could Talk: Forest Research Network Reveals Global Change Effects

Sep. 26, 2014 — Permafrost thaw drives forest loss in Canada, while drought has killed trees in Panama, southern India and Borneo. In the U.S., in Virginia, over-abundant deer eat trees before they reach maturity, ... full story

Causes of California Drought Linked to Climate Change

Sep. 29, 2014 — The extreme atmospheric conditions associated with California's crippling drought are far more likely to occur under today's global warming conditions than in the climate that existed before humans ... full story

Climate Detectives Reveal Handprint of Human Caused Climate Change in Australia

Sep. 29, 2014 — Australia's hottest year on record in 2013 along with the accompanying droughts, heat waves and record-breaking seasons of that year was virtually impossible without the influence of human-caused ... full story

Greenland Ice Sheet More Vulnerable to Climate Change Than Previously Thought

Sep. 29, 2014 — A new study finds that the Greenland Ice Sheet, which covers 1.7 million square kilometers and contains enough ice to raise sea levels worldwide by seven meters, is less stable and more sensitive to ... full story

While the Arctic Is Melting, the Gulf Stream Remains

Sep. 28, 2014 — The melting Arctic is not the source for less saline Nordic Seas. It is the Gulf Stream that has provided less salt. A new study documents that the source of fresher Nordic Seas since 1950 is rooted ... full story

Key Reaction for Producing 'Atmosphere's Detergent' Observed

Sep. 26, 2014 — A rapid atmospheric reaction critical to breaking down pollution in the lab has been observed by chemists. They identify an important intermediate molecule and track its transformation to hydroxyl ... full story

With Few Data, Arctic Carbon Models Lack Consensus

Sep. 26, 2014 — As climate change grips the Arctic, how much carbon is leaving its thawing soil and adding to Earth's greenhouse effect? The question has long been debated by scientists. A new study conducted as ... full story

Fertilizer and Fuel: Nitrogen-Fixing Enzyme Also Produces Hydrocarbons

Sep. 26, 2014 — Plants need nitrogen and carbon to grow. Photosynthesis allows them to take in the latter directly from the air, but they have to procure nitrogen through their roots in the form of organic molecules ... full story

Green Light for Clever Algae

Sep. 26, 2014 — Phytoplankton not only constitutes the foundation of the food chain in the oceans, it also fixes carbon through photosynthesis and generates oxygen with the help of solar energy. A considerable part ... full story

Sand Dunes Reveal Biodiversity Secrets in Australia

Sep. 25, 2014 — Ancient, acidic and nutrient-depleted dunes in Western Australia are not an obvious place to answer a question that has vexed tropical biologists for decades. But the Jurien Bay dunes proved to be ... full story

How to Make Stronger, 'Greener' Cement: New Formula Could Cut Greenhouse-Gas Emissions

Sep. 25, 2014 — Concrete is the world's most-used construction material, and a leading contributor to global warming, producing as much as one-tenth of industry-generated greenhouse-gas emissions. Now a new study ... full story

Stone Age Tools: Innovation Was Local, Not Imported, in Eurasia More Than 300,000 Years Ago

Sep. 25, 2014 — Analysis of stone artifacts from the excavation of a 300,000-year-old site in Armenia shows that new technologies evolved locally, rather than being imported from outside, as previously ... full story

Dinosaur Family Tree Gives Fresh Insight Into Rapid Rise of Birds

Sep. 25, 2014 — The study shows that the familiar anatomical features of birds – such as feathers, wings and wishbones – all first evolved piecemeal in their dinosaur ancestors over tens of millions of years. ... full story

Global Sea Levels Rose Up to Five Meters Per Century at the End of the Last Five Ice Age

Sep. 25, 2014 — Land-ice decay at the end of the last five ice-ages caused global sea-levels to rise at rates of up to 5.5 metres per century, according to a new study. Researchers developed a 500,000-year record of ... full story

Fossil of Ancient Multicellular Life Sets Evolutionary Timeline Back 60 Million Years

Sep. 24, 2014 — Geobiologists shed new light on multicellular fossils from a time 60 million years before a vast growth spurt of life known as the Cambrian Explosion occurred on ... full story

New Dinosaur from New Mexico Has Relatives in Alberta

Sep. 24, 2014 — A newly discovered armored dinosaur from New Mexico has close ties to the dinosaurs of Alberta, say paleontologists. From 76 to 66 million years ago, Alberta was home to at least five species of ... full story

Colorado's Front Range Fire Severity Not Much Different Than Past

Sep. 24, 2014 — The perception that Colorado's Front Range wildfires are becoming increasingly severe does not hold much water scientifically, according to a massive new ... full story

New Analysis of Human Genetic History Reveals Female Dominance

Sep. 24, 2014 — Female populations have been larger than male populations throughout human history, according to new research. The research used a new technique to obtain higher quality paternal genetic information ... full story

Facial Masculinity Not Always a Telling Factor in Mate Selection

Sep. 23, 2014 — Women living where rates of infectious disease are high, according to theory, prefer men with faces that shout testosterone when choosing a mate. However, an international study says that may not be ... full story

Record of Thousands of Years: Mega-Storm Surge in Florida

Sep. 23, 2014 — The observational hurricane record for northwestern Florida is just 160 years long, yet hurricane activity is known to vary strongly over thousands of years. Digging back into the prehistorical ... full story

Termites Evolved Complex Bioreactors 30 Million Years Ago

Sep. 23, 2014 — Achieving complete breakdown of plant biomass for energy conversion in industrialized bioreactors remains a complex challenge, but new research shows that termite fungus farmers solved this problem ... full story

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Countries Must Work Together to Stop Organ Traffickers, Says Researcher

Sep. 26, 2014 — The author of new research into organ trafficking has called for a concerted international effort to confront the problem. Although there is no internationally agreed definition, 'organ trafficking' ... full story

Agonizing Rabies Deaths Can Be Stopped Worldwide

Sep. 25, 2014 — Ridding the world of rabies in humans is cost-effective and achievable through mass dog vaccination programs, an international team of researchers says. A rabies vaccine has long existed. Even so, ... full story

Goats Better Than Chemicals for Curbing Invasive Marsh Grass

Sep. 25, 2014 — Herbivores, not herbicides, may be the most effective way to combat the spread of Phragmites australis, one of the most invasive plants now threatening East Coast salt marshes. A new study finds ... full story

Gauntlet of Obstacles Facing Migrating Pronghorn in Greater Yellowstone

Sep. 25, 2014 — One of North America's last remaining long-distance land migrations, better known as the Path of the Pronghorn, is being threatened by a mosaic of natural gas field development, highway traffic, and ... full story

Dengue Fever, Malaria in the Himalayas

Sep. 25, 2014 — Research by Nepalese and German scientists analyzes the current situation of malaria and Dengue fever in the Himalayan country of Nepal, and highlights how they profit from climate change and ... full story

Working Long Hours Linked to Increased Risk of Type 2 Diabetes in People Doing Low Socioeconomic Status Jobs

Sep. 24, 2014 — People working for more than 55 hours per week doing manual work or other low socioeconomic status jobs have a 30% greater risk of developing type 2 diabetes, according to the largest study in this ... full story

Drivers, Don't Trade in Your Smartphone for Google Glass Yet

Sep. 24, 2014 — Texting while driving with Google Glass is clearly a distraction, a new study has concluded -- but there is a twist. In the study, texting Glass users outperformed smartphone users when regaining ... full story

Natural Gas Usage Will Have Little Effect on Carbon Dioxide Emissions, Researchers Find

Sep. 24, 2014 — Abundant supplies of natural gas will do little to reduce harmful U.S. emissions causing climate change, according to researchers. They found that inexpensive gas boosts electricity consumption and ... full story

'Fracking' Wastewater That Is Treated for Drinking Downstream Produces Potentially Harmful Compounds

Sep. 24, 2014 — Concerns that fluids from hydraulic fracturing, or 'fracking,' are contaminating drinking water abound. Now, scientists are bringing to light another angle that adds to the controversy. A new study ... full story

Recreational Activity a Major Pollutant on Canadian Coast of Pacific Ocean

Sep. 24, 2014 — From recreational boats and fishing vessels to commercial cruise ships and private marinas, a newly published study shows that oil discharges related to human maritime activity on the Canadian coast ... full story

Job Loss Fears May Boost First-Time Asthma Risk

Sep. 22, 2014 — Job loss fears may boost the risk of developing asthma for the first time, indicates research. The findings back up other epidemiological studies pointing to a link between the development of asthma ... full story

Burnout Caused by More Than Just Job Stress

Sep. 16, 2014 — Impossible deadlines, demanding bosses, abusive colleagues, unpaid overtime: all factors that can lead to a burnout. But when it comes to mental health in the workplace, the influence of home life ... full story

Gray Matter Matters When Measuring Risk Tolerance: May Explain Why Risk Tolerance Decreases With Age

Sep. 12, 2014 — The gray matter volume of a region in the right posterior parietal cortex is significantly predictive of individual risk attitudes, new research has found. Using a whole-brain analysis, scientists ... full story

Illegal Land Clearing for Commercial Agriculture Responsible for Half of Tropical Deforestation

Sep. 10, 2014 — A comprehensive new analysis says that nearly half of all recent tropical deforestation is the result of illegal clearing for commercial agriculture. The study also finds that the majority of this ... full story

Working During Depression Can Offer Health Benefits to Employees

Sep. 10, 2014 — Attending work while suffering a depressive illness could help employees better manage their depression more than taking a sickness absence from work, a new study has found. The study is the first ... full story

There Could Be Increased Numbers of Psychopaths in Senior Managerial Positions, High Levels of Business, Research Shows

Sep. 8, 2014 — For the first time, it has been demonstrated that people with psychopathic tendencies who have high IQs can mask their symptoms by manipulating tests designed to reveal their personalities. It raises ... full story

Self-Deceived Individuals Deceive Others Better

Aug. 27, 2014 — Over-confident people can fool others into believing they are more talented than they actually are, a study has found. These 'self-deceived' individuals could be more likely to get promotions and ... full story

Feeling Bad at Work Can Be a Good Thing (and Vice Versa)

Aug. 21, 2014 — Contrary to popular opinion, it can be good to feel bad at work, whilst feeling good in the workplace can also lead to negative outcomes, researchers say. The commonly-held assumption that positivity ... full story

Sleepy College Students Stressed by Jobs

Aug. 20, 2014 — College students are typically more sleep deprived than the rest of us and often ignore the health benefits of adequate slumber, said a researcher who studies the topic. "Sleep is extremely important ... full story

In an Already Stressful Workplace, Great Recession's Health Effects Hard to Find

Aug. 19, 2014 — The Great Recession of 2007-2009 had little direct effect on the health of workers who survived the waves of job cuts that took place during that period, according to a new ... full story

False Memories Could Be a Side-Effect of Human Ability to Learn Rules

Sep. 24, 2014 — Our tendency to create false memories could be related to our ability to learn rules according to new research. New research suggests that individuals who are particularly good at learning rules and ... full story

Fighting Parents Hurt Children's Ability to Recognize and Regulate Emotions

Sep. 17, 2014 — Exposure to verbal and physical aggression between parents may hurt a child's ability to identify and control emotions, according to a longitudinal study. Exposure to conflict and violence in the ... full story

Brain Scans Used to Forecast Early Reading Difficulties

Sep. 15, 2014 — Researchers have used brain scans to predict how young children learn to read, giving clinicians a possible tool to spot children with dyslexia and other reading difficulties before they experience ... full story

3-D Printing of Rocks and Fossils

Sep. 15, 2014 — Geologists are using 3-D printing to study the pores within limestone reservoir rocks. A better understanding of the pore networks within the rocks could help industry get at more ... full story

Brain Differences: Sometimes, Adolescents Just Can't Resist

Sep. 11, 2014 — A new study finds teenagers are far more sensitive than adults to the immediate effect or reward of their behaviors. Even when a behavior is no longer in a teenager’s best interest to continue, ... full story

High Levels of Physical Activity Linked to Better Academic Performance in Boys

Sep. 11, 2014 — Higher levels of physical activity are related to better academic achievement during the first three school years, particularly in boys, research shows. For instance, boys with higher levels of ... full story

Binge Drinking in Pregnancy Can Affect Child's Mental Health, School Results

Sep. 10, 2014 — Binge drinking during pregnancy can increase the risk of mental health problems (particularly hyperactivity and inattention) in children aged 11 and can have a negative effect on their school ... full story

Cellphone Addiction Harming Academic Performance Is 'an Increasingly Realistic Possibility'

Aug. 28, 2014 — Women college students spend an average of 10 hours a day on their cellphones, with men college students spending nearly eight hours, according to a study on cellphone activity. "As cellphone ... full story

Readers With Dyslexia Have Disrupted Network Connections in the Brain, Map the Circuitry of Dyslexia Shows

Aug. 28, 2014 — Dyslexia, the most commonly diagnosed learning disability in the United States, is a neurological reading disability that occurs when the regions of the brain that process written language don't ... full story

Social Class Makes a Difference in How Children Tackle Classroom Problems

Aug. 27, 2014 — Social class can account for differences in how parents coach their children to manage classroom challenges, a study shows. Such differences can affect a child's education by reproducing inequalities ... full story

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