Today's Science News

Wednesday, October 1, 2014

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from universities, journals, and other organizations

Solving the Mystery of the 'Man in the Moon': Volcanic Plume, Not an Asteroid, Likely Created the Moon's Largest Basin

Oct. 1, 2014 — New data obtained by NASA's GRAIL mission reveals that the Procellarum region on the near side of the moon -- a giant basin often referred to as the "man in the moon" -- likely arose ... full story

New Drug-Delivery Capsule May Replace Injections

Oct. 1, 2014 — A pill coated with tiny needles can deliver drugs directly into the lining of the digestive tract, researchers have found, suggesting that the end of injections may be ... full story

NASA's Swift Mission Observes Mega Flares from Nearby Red Dwarf Star

Sep. 30, 2014 — On April 23, NASA's Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this ... full story

Satellite Measurements Reveal Gravity Dip from Ice Loss in West Antarctica

Sep. 30, 2014 — Although not designed to map changes in Earth's gravity over time, ESA's GOCE satellite has shown that the ice lost from West Antarctica over the last few years has left its signature. More ... full story

Astronomers Find 'Cousin' Planets Around Twin Stars

Sep. 30, 2014 — Astronomers have found two new Jupiter-sized extra-solar planets, each orbiting one star of a binary-star system.  Most known extra-solar planets orbit stars that are alone, like our Sun. Yet many ... full story

Genetic Secrets of the Monarch Butterfly Revealed

Oct. 1, 2014 — Sequencing the genomes of monarch butterflies from around the world, a team of scientists has made surprising new insights into the monarch's genetics. They identified a single gene that appears ... full story

Support for Controversial Darwin Theory of 'Jump Dispersal'

Oct. 1, 2014 — More than one hundred and fifty years ago, Charles Darwin hypothesized that species could cross oceans and other vast distances on vegetation rafts, icebergs, or in the case of plant seeds, in the ... full story

Nature Collides With James Bond: Newly Discovered Ant Species Hides in Plain Sight

Oct. 1, 2014 — A new species of ant has been discovered that uses social parasitism to access host ant species' food sources and foraging trails: Cephalotes specularis, commonly known as the mirror turtle ant. ... full story

Aral Sea Loses Its Eastern Lobe -- First Time in Modern History, NASA's Terra Satellite Shows

Sep. 30, 2014 — Summer 2014 marked another milestone for the Aral Sea, the once-extensive lake in Central Asia that has been shrinking markedly since the 1960s. For the first time in modern history, the eastern ... full story

CDC and Texas Health Department Confirm First Ebola Case Diagnosed in the U.S.

Sep. 30, 2014 — The Centers for Disease Control and Prevention (CDC) confirmed today, through laboratory tests, the first case of Ebola to be diagnosed in the United States in a person who had traveled to Dallas, ... 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

Quest Continues for Peanut That Won't Cause Allergic Reaction

Sep. 29, 2014 — A food scientist has removed 80 percent of allergens from whole peanuts, moving him a step closer to eliminating 99.9 percent of peanut allergens. For the study, researchers used a pulsating light ... 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 ... 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

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

Featured Videos

from AP, Reuters, AFP, and other news services

Cultural Learning In Wild Chimps Observed For The First Time

Cultural Learning In Wild Chimps Observed For The First Time

Newsy (Oct. 1, 2014) — Cultural transmission — the passing of knowledge from one animal to another — has been caught on camera with chimps teaching other chimps. Video provided by Newsy
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CDC Confirms First Case of Ebola in US

CDC Confirms First Case of Ebola in US

AP (Sep. 30, 2014) — The CDC has confirmed the first diagnosed case of Ebola in the United States. The patient is being treated at a Dallas hospital after traveling earlier this month from Liberia. (Sept. 30) Video provided by AP
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Dolphins Might Use Earth's Magnetic Field As A GPS

Dolphins Might Use Earth's Magnetic Field As A GPS

Newsy (Sep. 30, 2014) — A study released Monday suggests dolphins might be able to sense the Earth's magnetic field and possibly use it as a means of navigation. Video provided by Newsy
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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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last updated on 2014-10-01 at 2:23 pm EDT

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Intervention Helps Decrease 'Mean Girl' Behaviors, Researchers Find

Oct. 1, 2014 — Relational aggression, or 'mean girl' bullying, is a popular subject in news and entertainment media. This nonphysical form of aggression generally used among adolescent girls includes gossiping, ... full story

Treatment of Substance Abuse Can Lessen Risk of Future Violence in Mentally Ill

Oct. 1, 2014 — If a person is dually diagnosed with a severe mental illness and a substance abuse problem, are improvements in their mental health or in their substance abuse most likely to reduce the risk of ... full story

What Happens in Our Brain When We Unlock a Door? Research Sheds Light on Aprixia Condition

Oct. 1, 2014 — People who are unable to button up their jacket or who find it difficult to insert a key in lock suffer from a condition known as apraxia. This means that their motor skills have been impaired -- as ... full story

Giving Botox a Safer Facelift: Structures of Botulinum Neurotoxins Studied

Oct. 1, 2014 — New insights into botulinum neurotoxins and their interactions with cells are moving scientists ever closer to safer forms of Botox and a better understanding of the dangerous disease known as ... full story

FDG-PET/CT Shows Promise for Breast Cancer Patients Younger Than 40

Oct. 1, 2014 — PET/CT imaging of patients younger than 40 who were initially diagnosed with stage I–III breast cancer resulted in change of diagnosis, a study shows. While guidelines recommend FDG-PET/CT imaging ... full story

Paint on 'Smart' Bandage Emits Phosphorescent Glow for Healing Below

Oct. 1, 2014 — Inspired by a desire to help wounded soldiers, a team of researchers has created a paint-on, see-through, 'smart' bandage that glows to indicate a wound's tissue oxygenation concentration. Because ... full story

Medical Discovery First Step on Path to New Painkillers

Oct. 1, 2014 — A major medical discovery could lead to the development of an entirely new type of painkiller, scientists suggest. The new drug would offer new hope to sufferers of chronic pain conditions such as ... full story

Acupuncture Does Not Improve Chronic Knee Pain, Study Finds

Oct. 1, 2014 — In patients older than 50 years with moderate or severe chronic knee pain, acupuncture did not provide any benefit, a study has concluded. Acupuncture is the most popular of alternative medical ... full story

Eighty Percent of Bowel Cancers Halted With Existing Medicines

Oct. 1, 2014 — More than 80 percent of bowel cancers could be treated with existing drugs, an international team of scientists say at the conclusion of their study. The study found that medicines called 'JAK ... full story

Lift Weights, Improve Your Memory, Study Shows

Oct. 1, 2014 — Here’s another reason why it’s a good idea to hit the gym: it can improve memory. A new study shows that an intense workout of as little as 20 minutes can enhance episodic memory, also known as ... full story

Why Wet Feels Wet: Understanding the Illusion of Wetness

Oct. 1, 2014 — Though it seems simple, feeling that something is wet is quite a feat because our skin does not have receptors that sense wetness. UK researchers propose that wetness perception is intertwined with ... full story

Predicting Future Course of Psychotic Illness

Oct. 1, 2014 — Psychiatry researchers have developed a model that could help to predict a patient's likelihood of a good outcome from treatment -- from their very first psychotic ... full story

Keeping Your Eyes on the Prize Can Help With Exercise, Study Finds

Oct. 1, 2014 — The adage that encourages people to keep their 'eyes on the prize' may be on target when it comes to exercise. When walking, staying focused on a specific target ahead can make the distance to it ... full story

Omega-3 Fatty Acids May Prevent Some Forms of Depression

Oct. 1, 2014 — Patients with increased inflammation, including those receiving cytokines for medical treatment, have a greatly increased risk of depression. For example, a 6-month treatment course of ... full story

Gene Interacts With Stress, Leads to Heart Disease in Some People

Oct. 1, 2014 — Some people who are prone to hostility, anxiety and depression might also be hard-wired to gain weight when exposed to chronic stress, leading to diabetes and heart disease, a new genetic finding ... full story

EEG's Potential to Reveal Depolarizations Following TBI

Sep. 30, 2014 — The potential for doctors to measure damaging 'brain tsunamis' in injured patients without opening the skull has moved a step closer to reality, thanks to new pioneering research. The discovery has ... full story

Low Social Support Linked to Poor Health in Young Heart Attack Survivors

Sep. 30, 2014 — Lower social support is associated with poorer health and quality of life and more depressive symptoms in young men and women a year after having a heart attack. Social support is the perception of ... full story

Improving Babies' Language Skills Before They're Even Old Enough to Speak

Sep. 30, 2014 — In the first months of life, when babies begin to distinguish sounds that make up language from all the other sounds in the world, they can be trained to more effectively recognize which sounds ... full story

Memory Loss Associated With Alzheimer's Reversed: Small Trial Succeeds Using Systems Approach to Memory Disorders

Sep. 30, 2014 — In the first, small study of a novel, personalized and comprehensive program to reverse memory loss, nine of 10 participants displayed subjective or objective improvement in their memories beginning ... full story

Depression Increasing Across the United States

Sep. 30, 2014 — Americans are more depressed now than they have been in decades, a recent study shows. Analyzing data from 6.9 million adolescents and adults from all over the country, researchers found that ... full story

Pet Foods: Not All Brands Follow Meat Regulations

Oct. 1, 2014 — Pet food mislabeling: the issue is a significant one when it comes to commercial pet foods marketed for dogs and cats. New research set out to identify meat species present as well as any instances ... full story

Synthetic Sperm Protein Raises the Chance for Successful in Vitro Fertilization

Sep. 30, 2014 — Having trouble getting pregnant -- even with in vitro fertilization? Here's some hope: A new research report explains how scientists developed a synthetic version of a sperm-originated protein which ... full story

Adolescent Exposure to THC May Cause Immune Systems to Go Up in Smoke

Sep. 30, 2014 — When it comes to using marijuana, new research involving mice suggests that just because you can do it, doesn't mean that you should. That's because a team of scientists have found that using ... full story

Alcohol Makes Smiles More 'Contagious,' but Only for Men

Sep. 30, 2014 — Consuming an alcoholic beverage may make men more responsive to the smiles of others in their social group, according to new research. The findings suggest that, for men, alcohol increases ... full story

Safer Than Silver: Antibacterial Material Made With Algae

Sep. 30, 2014 — Consumers concerned about safety of silver ions in antibacterial and odor-free clothing will soon have a proven safe alternative thanks to ultra-thin thread and a substance found naturally in red ... full story

Development Models Put to the Test: Low Birth Weight Children Are Particularly Vulnerable to Environmental Influences

Sep. 30, 2014 — Low birth weight children are more vulnerable to environmental influences than infants born with normal weight. When brought up with a great deal of sensitivity, they will be able to catch up in ... full story

Asthma Symptoms Kicking Up? Check Your Exposure to Air Pollution

Sep. 30, 2014 — A woman who suffers from asthma has been the subject of a recent case study. She, along with her doctor, realized that by changing her bike route to and from work every day, she can cut down on the ... full story

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

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

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

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Platinum Meets Its Match in Quantum Dots from Coal: New Catalyst for Fuel Cells Outperforms Platinum

Oct. 1, 2014 — Scientists combined graphene quantum dots drawn from common coal with graphene oxide, nitrogen and boron into a catalyst for fuel cells that outperforms platinum. Graphene quantum dots grab onto ... full story

Novel Approach to Magnetic Measurements Atom-by-Atom

Oct. 1, 2014 — Having the possibility to measure magnetic properties of materials at atomic precision is one of the important goals of today's experimental physics. Such measurement technique would give engineers ... full story

Cold Atom Laboratory Chills Atoms to New Lows

Sep. 30, 2014 — NASA's Cold Atom Laboratory (CAL) mission has succeeded in producing a state of matter known as a Bose-Einstein condensate, a key breakthrough for the instrument leading up to its debut on the ... full story

'Virtual Breast' Could Improve Cancer Detection

Sep. 30, 2014 — A 'virtual breast' has been developed to help train clinicians in the use of ultrasound elastography. The advanced imaging technique holds promise for improving cancer detection, but only if the ... full story

Blades of Grass Inspire Advance in Organic Solar Cells

Sep. 30, 2014 — Using a bio-mimicking analog of one of nature's most efficient light-harvesting structures, blades of grass, an international research team has taken a major step in developing long-sought polymer ... full story

New Dimension for Integrated Circuits: 3-D Nanomagnetic Logic

Sep. 30, 2014 — Electrical engineers have demonstrated a new kind of building block for digital integrated circuits. Their experiments show that future computer chips could be based on three-dimensional arrangements ... full story

Novel Method for Making Electrical Cellulose Fibers

Sep. 30, 2014 — By using liquid salts during formation instead of harsh chemicals, fibers that conduct electricity can be strengthened, according to new ... full story

High-Speed Drug Screen Developed

Sep. 30, 2014 — Engineers have devised a way to rapidly test hundreds of different drug-delivery vehicles in living animals, making it easier to discover promising new ways to deliver a class of drugs called ... full story

Revisiting Stokes Drift: Waves of the Future

Sep. 30, 2014 — The 19th-century 'Stokes drift' concept that a tiny sphere on a small wave would trace a spiral, not a closed circle, was assumed to be unlikely to occur in nature. But using 21st-century ... full story

A Heartbeat Away? Hybrid 'Patch' Could Replace Transplants

Sep. 30, 2014 — Because heart cells cannot multiply and cardiac muscles contain few stem cells, heart tissue is unable to repair itself after a heart attack. Now researchers are literally setting a new gold standard ... full story

Swirling Cloud at Titan's Pole Is Cold and Toxic

Oct. 1, 2014 — Scientists analyzing data from NASA's Cassini mission have discovered that a giant, toxic cloud is hovering over the south pole of Saturn's largest moon, Titan, after the atmosphere there cooled ... full story

Astronomy: Wild Ducks Take Flight in Open Cluster

Oct. 1, 2014 — The Wide Field Imager on the MPG/ESO 2.2-meter telescope at ESO's La Silla Observatory in Chile has taken this beautiful image, dappled with blue stars, of one of the most star-rich open clusters ... full story

Students Astonished by Stuttering Star

Oct. 1, 2014 — Secondary school students in Australia have helped reveal weird, jittery behavior in a pulsar called PSR J1717-4054. Pulsars are super-dense, highly magnetized balls of ‘neutron matter’ the size ... full story

Space Debris Expert Warns of Increasing Small Satellite Collision Risk

Sep. 30, 2014 — The increasing number of small 'CubeSat' satellites being launched combined with a relaxed attitude to debris mitigation could lead to hazards for all space users unless preventative measures are ... 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

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 square ... full story

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 stars ... 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

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

Ethical Filament: Can Fair Trade Plastic Save People and the Planet?

Oct. 1, 2014 — It’s old news that open-source 3D printing is cheaper than conventional manufacturing, not to mention greener and incredibly useful for making everything from lab equipment to chess pieces. Now ... 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

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

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

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

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

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

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

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Coral Reef Winners and Losers as Water Temperatures Rise

Oct. 1, 2014 — Contrary to the popular research-based assumption that the world's coral reefs are doomed, a new longitudinal study paints a brighter picture of how corals may fare in the future. A subset of present ... full story

Predicting Impact of Climate Change on Species That Can't Get out of the Way

Oct. 1, 2014 — When scientists talk about the consequences of climate change, it can mean more than how we human beings will be impacted by higher temperatures, rising seas and serious storms. Plants and trees are ... full story

Fall in Monsoon Rains Driven by Rise in Air Pollution, Study Shows

Oct. 1, 2014 — Emissions produced by human activity have caused annual monsoon rainfall to decline over the past 50 years, a study suggests. In the second half of the 20th century, the levels of rain recorded ... full story

Semen Secrets: How a Previous Sexual Partner Can Influence Another Male's Offspring

Oct. 1, 2014 — Scientists have discovered a new form of non-genetic inheritance, showing for the first time that offspring can resemble a mother's previous sexual partner -- in flies at least. Researchers ... full story

Microbes in Central Park Soil: If They Can Make It There, They Can Make It Anywhere

Oct. 1, 2014 — Researchers have uncovered more than 167,000 kinds of bacteria, archaea and eukaryotes in the soil beneath one of the nation's iconic urban environments. That’s 260 times as many species of birds, ... full story

Geneticists Solve 40-Year-Old Dilemma to Explain Why Duplicate Genes Remain in the Genome

Sep. 30, 2014 — After 40 years of wondering why, scientists have discovered that duplicate genes confer 'mutational robustness' in individuals, which allows them to adapt to novel, potentially dangerous ... full story

Study Shows How Chimpanzees Share Skills: Evidence of New Behavior Being Transmitted Socially

Sep. 30, 2014 — Biologists have found evidence of new behavior being adopted and transmitted socially from one individual to another within a wild chimpanzee community. This is the first instance of social learning ... full story

How Dinosaur Arms Turned Into Bird Wings

Sep. 30, 2014 — Although we now appreciate that birds evolved from a branch of the dinosaur family tree, a crucial adaptation for flight has continued to puzzle evolutionary biologists. During the millions of years ... full story

Pollution Linked to Lethal Sea Turtle Tumors

Sep. 30, 2014 — Polluted urban and farm runoff in Hawaii has been linked to lethal tumors in endangered sea turtles. A new study finds that excess nitrogen in the runoff accumulates in algae that the turtles eat and ... full story

How to Beat Monk Parakeets at Their Own Game: Scientists Prevent Nests on Utility Poles

Sep. 30, 2014 — Researchers have announced they have found a way to prevent Monk Parakeets from building huge nests on utility poles by blocking access to the electric lines that are the gateway to their nesting ... full story

Changing Antarctic Waters Could Trigger Steep Rise in Sea Levels, Conditions 14,000 Years Ago Suggest

Oct. 1, 2014 — Current changes in the ocean around Antarctica are disturbingly close to conditions 14,000 years ago that new research shows may have led to the rapid melting of Antarctic ice and an abrupt 3-4 meter ... full story

How to Make a 'Perfect' Solar Absorber

Sep. 30, 2014 — Researchers have developed a solar cell that can tap the sun's full radiation spectrum. The material is a two-dimensional metallic dielectric photonic crystal, and has the additional benefits of ... full story

High Metabolic Rates and Low Temperatures Were Associated With High Risk-Taking Behavior in Birds

Sep. 30, 2014 — A long-term study on different populations of great tits has shown that risk-taking behavior correlates with both metabolic rate and ambient temperature. High metabolic rates and low temperatures ... full story

Bacteria May Have Ability to Reduce Impact of Diazepam on UK River Environments

Sep. 30, 2014 — A reaction pathway that could reduce the potentially harmful impact of diazepam and similar chemicals on the UK's freshwater environment has been discovered by researchers. Diazepam -- used to treat ... full story

Florida's Climate Boosts Soil-Carbon Storage, Cuts Greenhouse Emissions

Sep. 30, 2014 — Sequestration helps mitigate carbon-based gases from getting into the atmosphere. A new study shows Florida's warm, wet climate helps keep carbon in the soil. Soil-stored carbon can slow the build-up ... full story

Laser-Guided Herds of Sea Monkeys Show How Zooplankton Migrations May Affect Global Ocean Currents

Sep. 30, 2014 — Sea monkeys have captured the popular attention of both children and aquarium hobbyists because of their easily observable life cycle. Physicists are interested in a shorter-term pattern: Like other ... full story

Coral's Best Defender Against an Army of Sea Stars: Crabs

Sep. 30, 2014 — Coral reefs face a suite of perilous threats in today's ocean. From overfishing and pollution to coastal development and climate change, fragile coral ecosystems are disappearing at unprecedented ... full story

Fish Need Time to Adjust to New Environmental Conditions

Sep. 30, 2014 — Fish can live in almost any aquatic environment on Earth, but when the climate changes and temperatures go up many species are pushed to the limit. The amount of time needed to adjust to new ... full story

Biodiversity Does Not Always Improve Resistance of Forest Ecosystems to Drought

Sep. 30, 2014 — The resistance of forests to drought has been studied, with a focus on the diversity of tree species. This study shows that mixed species forests are more resistant to drought stress than ... full story

DNA Signature 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

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 genome ... 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 targeting ... 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

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 understanding ... 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

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Medications Are Main Culprit of Allergic Deaths in U.S., Comprehensive Study Finds

Sep. 30, 2014 — Medications are the leading cause of allergy-related sudden deaths in the U.S., according to an analysis of death certificates from 1999 to 2010. The study also found that the risk of fatal ... full story

New Transparent Nanoscintillators for Radiation Detection Developed

Sep. 29, 2014 — Radiation 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

What Makes a Song Sing? Backup Singers

Sep. 29, 2014 — What made Michael Jackson’s “Billie Jean” a No. 1 hit on Billboard’s Hot 100 in 1983, and other songs, like Madonna’s 1999 “Nothing Really Matters,” flounder at 90 or below? New ... full story

Calling 9-1-1 Can Be the Difference Between Life and Death, New Study Reconfirms

Sep. 29, 2014 — It's a simple message: call 911 at the first warning signs of a heart attack. Unfortunately, many still choose to either drive to the hospital, or wait to see if the symptoms disappear. New research ... full story

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

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

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

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

After-School Exercise Program Enhances Cognition in 7-, 8 And 9-Year-Olds

Sep. 29, 2014 — A nine-month-long, randomized controlled trial involving 221 prepubescent children found that those who engaged in moderate-to-vigorous physical activity for at least 60 minutes a day after school ... 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

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