Referral Banners

Friday, October 10, 2014

ScienceDaily: Top Science News

ScienceDaily: Top Science News

Manipulating memory with light

Posted: 09 Oct 2014 01:38 PM PDT

Neuroscientists have used light to erase a specific memory in mice, showing how the hippocampus and cortex work together to retrieve memories.

Migrating animals' urine affects ocean chemistry

Posted: 09 Oct 2014 01:38 PM PDT

Tiny animals migrating from the ocean's surface to the sunlit depths release ammonia, the equivalent of our urine, that plays a significant role in marine chemistry, particularly in low-oxygen zones.

Stunning finds from ancient Greek shipwreck

Posted: 09 Oct 2014 01:37 PM PDT

Divers and archaeologists have retrieved stunning new finds from an ancient Greek ship that sank more than 2,000 years ago off the remote island of Antikythera. The rescued antiquities include tableware, ship components, and a giant bronze spear that would have belonged to a life-sized warrior statue.

Ebola research shows rapid control interventions key factor in preventing spread

Posted: 09 Oct 2014 01:37 PM PDT

New Ebola research demonstrates that quick and forceful implementation of control interventions are necessary to control outbreaks and avoid far worse scenarios. Researchers analyzed up-to-date epidemiological data of Ebola cases in Nigeria as of Oct. 1, 2014, in order to estimate the case fatality rate, proportion of health care workers infected, transmission progression and impact of control interventions on the size of the epidemic.

'Sepsis Sniffer' Generates Faster Sepsis Care, Suggests Reduced Mortality

Posted: 09 Oct 2014 01:33 PM PDT

An automated early warning and response system for sepsis has resulted in a marked increase in sepsis identification and care, transfer to the ICU, and an indication of fewer deaths due to sepsis, scientists report.

New investigational cardiac pacemaker as small as a vitamin

Posted: 09 Oct 2014 12:38 PM PDT

Cardiologists have implanted an investigational cardiac pacemaker the size of a multivitamin. The first implantable pacemakers, developed in the late-1950s, were nearer the size of a transistor radio.

Dissolvable silicon circuits and sensors

Posted: 09 Oct 2014 12:38 PM PDT

Electronic devices that dissolve completely in water, leaving behind only harmless end products, are part of a rapidly emerging class of technology. This technology suggest a new era of devices that range from green consumer electronics to 'electroceutical' therapies, to biomedical sensor systems that do their work and then disappear.

Nanoparticles get a magnetic handle: Glowing nanoparticles can be manipulated using magnetic fields

Posted: 09 Oct 2014 11:16 AM PDT

A long-sought goal of creating particles that can emit a colorful fluorescent glow in a biological environment, and that could be precisely manipulated into position within living cells, has been achieved.

Snakes and snake-like robots show how sidewinders conquer sandy slopes

Posted: 09 Oct 2014 11:14 AM PDT

The amazing ability of sidewinder snakes to quickly climb sandy slopes was once something biologists only vaguely understood and roboticists only dreamed of replicating. By studying the snakes in a unique bed of inclined sand and using a snake-like robot to test ideas spawned by observing the real animals, both biologists and roboticists have now gained long-sought insights.

Temperature and water vapor on an exoplanet mapped

Posted: 09 Oct 2014 11:14 AM PDT

A team of scientists has made the most detailed map yet of the temperature of an exoplanet's atmosphere and traced the amount of water it contains. The planet targeted for both of the investigations was the hot-Jupiter exoplanet WASP-43b.

Unstoppable magnetoresistance

Posted: 09 Oct 2014 09:56 AM PDT

Researchers have discovered a material (WTe2) with an extremely large magnetoresistance, which is the change in resistance as a material is exposed to stronger magnetic fields. The researchers exposed WTe2 to a 60-tesla magnetic field, close to the strongest magnetic field mankind can create, and observed a magnetoresistance of 13 million percent. The material's magnetoresistance displayed unlimited growth, making it the only known material without a saturation point.

Multiple neurodevelopmental disorders have a common molecular cause

Posted: 09 Oct 2014 09:55 AM PDT

Neurodevelopmental disorders such as Down syndrome and autism-spectrum disorder can have profound, lifelong effects on learning and memory, but relatively little is known about the molecular pathways affected by these diseases. A study shows that neurodevelopmental disorders caused by distinct genetic mutations produce similar molecular effects in cells, suggesting that a one-size-fits-all therapeutic approach could be effective for conditions ranging from seizures to attention-deficit hyperactivity disorder.

Discovery of new subatomic particle, type of meson, to 'transform' understanding of fundamental force of nature

Posted: 09 Oct 2014 08:26 AM PDT

The discovery of a new particle will "transform our understanding" of the fundamental force of nature that binds the nuclei of atoms, researchers argue. The discovery of the new particle will help provide greater understanding of the strong interaction, the fundamental force of nature found within the protons of an atom's nucleus.

A cost-effective and energy-efficient approach to carbon capture

Posted: 09 Oct 2014 06:19 AM PDT

Scientists have developed a slurry-based process that can revolutionize carbon capture. The slurry, consisting of a porous powder suspended in glycol, offers the efficient large-scale implementation of a liquid while maintaining the lower costs and energy efficiency of solid carbon-capturing materials.

Jumping Genes and Cichlids' Egg-Spots: How Evolution Creates new Characteristics

Posted: 09 Oct 2014 06:17 AM PDT

The evolution of new traits with novel functions has always posed a challenge to evolutionary biology. Studying the color markings of cichlid fish, scientists were now able to show what triggered these evolutionary innovations, namely: a mobile genetic element in the regulatory region of a color gene.

Milky Way has half the amount of dark matter as previously thought

Posted: 09 Oct 2014 06:16 AM PDT

A new measurement of dark matter in the Milky Way has revealed there is half as much of the mysterious substance as previously thought.

No comments: