Syndicate content Latest Science News -- ScienceDaily
Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate and environment, computers, engineering, health and medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations.
Updated: 20 min 31 sec ago

Laughter is the best medicine? The emotional appeal of stand-up comedy

Wed, 30/07/2014 - 2:40pm
Comics taking to the stage should take note: how much of a hit they are with their audiences won’t be down to just their jokes. The link between humor and emotion plays a large part in how well an audience connects with a comedian, and vice versa, according to new research.
Categories: Science

Breastfeeding: Do celebrity ambassadors help the ordinary woman?

Wed, 30/07/2014 - 2:40pm
Breasts are the strongest symbol of female sexuality and are abundant in the media, on magazines, in adverts and in film. Celebrity breasts are depicted as objects of sexual desire and as a model for everyday women to aspire to. Broadcast images of breastfeeding however are scarce and elicit controversy and even revulsion.
Categories: Science

Solar energy: Dyes help harvest light

Wed, 30/07/2014 - 2:40pm
A new dye-sensitized solar cell absorbs a broad range of visible and infrared wavelengths. Dye-sensitized solar cells rely on dyes that absorb light to mobilize a current of electrons and are a promising source of clean energy. Scientists have now developed zinc porphyrin dyes that harvest light in both the visible and near-infrared parts of the spectrum.
Categories: Science

Heat-responsive polymers that do not breakdown in water may lead to new antifouling coatings and enhanced oil recovery

Wed, 30/07/2014 - 2:40pm
Heat-responsive polymers that do not breakdown in water may lead to new antifouling coatings and enhanced oil recovery.
Categories: Science

Electric vehicles: Recharging in private

Wed, 30/07/2014 - 2:40pm
An electronic payment system will protect the privacy of customers recharging their electric vehicles.
Categories: Science

Is a cancer drug working? Modified drug gives a 'green light' for its own success

Wed, 30/07/2014 - 2:40pm
A modified anticancer drug can simultaneously target tumor sites and show whether or not it is working.
Categories: Science

Mercury's bizzare magnetic field tells scientists how its interior is different from Earth's

Wed, 30/07/2014 - 1:43pm
Mercury's interior is different from the Earth's interior in a way that explains Mercury's bizarre magnetic field, planetary physicists report. Measurements from NASA's Messenger spacecraft have revealed that Mercury's magnetic field is approximately three times stronger at its northern hemisphere than its southern one.
Categories: Science

Scientists caution against exploitation of deep ocean

Wed, 30/07/2014 - 1:43pm
The world's oceans are vast and deep, yet rapidly advancing technology and the quest for extracting resources from previously unreachable depths is beginning to put the deep seas on the cusp of peril, an international team of scientists has warned.
Categories: Science

Toward a home test for detecting potentially dangerous levels of caffeine

Wed, 30/07/2014 - 1:43pm
The shocking news of an Ohio teen who died of a caffeine overdose in May highlighted the potential dangers of the normally well-tolerated and mass-consumed substance. To help prevent serious health problems that can arise from consuming too much caffeine, scientists are reporting progress toward a rapid, at-home test to detect even low levels of the stimulant in most beverages and even breast milk.
Categories: Science

Hope for more accurate diagnosis of memory problems

Wed, 30/07/2014 - 1:40pm
More accurate tests could be created to diagnose diseases such as Alzheimer's or memory problems stemming from head injuries, leading to earlier intervention, according to new findings from researchers. The research involved investigating the components of memory using a combination of tests and neuroimaging -- a method that could be used to create a diagnostic tool for distinguishing between different types of dementia, memory damage from stroke or forms of amnesia caused by head trauma.
Categories: Science

Sugar mimics guide stem cells toward neural fate

Wed, 30/07/2014 - 1:40pm
Many growth factors that influence the fate of embryonic stem cells must bind to sugars attached to specific receptors on the surface of the cell to work. Because the sugars are difficult to manipulate, biochemists created synthetic stand ins that helped to identify substructures recognized by a growth factor involved in neural development.
Categories: Science

Climate extremes are here to stay: Expect more heat waves and cold snaps

Wed, 30/07/2014 - 1:40pm
Researchers show how they've used advanced computational data science tools to demonstrate that despite global warming, we may still experience severe cold snaps due to increasing variability in temperature extremes.
Categories: Science

Spin-based electronics: New material successfully tested

Wed, 30/07/2014 - 1:40pm
Spintronics is a new field of electronics, using electron spin rather than motion. This technology requires insulating components that can control this quantum property. Scientists have shown experimentally that a novel material shows all the required properties.
Categories: Science

New catalyst converts carbon dioxide to fuel

Wed, 30/07/2014 - 1:40pm
Scientists have synthesized a catalyst that improves their system for converting waste carbon dioxide into syngas, a precursor of gasoline and other energy-rich products, bringing the process closer to commercial viability.
Categories: Science

Peru's carbon quantified: Economic and conservation boon

Wed, 30/07/2014 - 1:40pm
Today scientists unveiled the first high-resolution map of the carbon stocks stored on land throughout the entire country of Peru. The new and improved methodology used to make the map marks a sea change for future market-based carbon economies. The new carbon map also reveals Peru's extremely high ecological diversity and it provides the critical input to studies of deforestation and forest degradation for conservation, land use, and enforcement purposes.
Categories: Science

Numerical learning disability: Dyscalculia linked to difficulties in reading and spelling

Wed, 30/07/2014 - 1:38pm
Between three and six percent of schoolchildren suffer from an arithmetic-related learning disability. Researchers now show that these children are also more likely to exhibit deficits in reading and spelling than had been previously suspected.
Categories: Science

Superman's solar-powered feats break a fundamental law of physics

Wed, 30/07/2014 - 1:38pm
It goes without saying that Superman can accomplish some pretty spectacular feats. But according to students, the Man of Steel actually achieves the impossible--by breaking the fundamental physics law of conservation of energy.
Categories: Science

All-in-one energy system offers greener power for off–grid homes, farms and businesses

Wed, 30/07/2014 - 1:38pm
An innovative ‘trigeneration’ system fuelled entirely by raw plant oils could have great potential for isolated homes and businesses operating outside grid systems.
Categories: Science

Ice age lion figurine: Ancient fragment of ivory belonging to 40,000 year old animal figurine unearthed

Wed, 30/07/2014 - 1:38pm
Archaeologists have found an ancient fragment of ivory belonging to a 40,000 year old animal figurine. Both pieces were found in the Vogelherd Cave in southwestern Germany, which has yielded a number of remarkable works of art dating to the Ice Age. The mammoth ivory figurine depicting a lion was discovered during excavations in 1931. The new fragment makes up one side of the figurine’s head.
Categories: Science

Older adults are at risk of financial abuse, often from family members

Wed, 30/07/2014 - 1:38pm
Nearly one in every 20 elderly American adults is being financially exploited -- often by their own family members. This burgeoning public health crisis especially affects poor and black people. It merits the scrutiny of clinicians, policy makers, researchers, and any citizen who cares about the dignity and well-being of older Americans, says an expert.
Categories: Science