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International team observes first radio counterpart to gravitational waves

EurekAlert! - Dom, 10/15/2017 - 22:00
NRL Radio Astrophysics and Sensing Section astronomers join an international collaboration of researchers with the Caltech-led GROWTH project, resulting in the first ever observation of the radio counterpart to a gravitational wave event.

Neutrons observe vitamin B6-dependent enzyme activity useful for drug development

EurekAlert! - Dom, 10/15/2017 - 22:00
Scientists at the Department of Energy's Oak Ridge National Laboratory have performed neutron structural analysis of a vitamin B6-dependent protein, potentially opening avenues for new antibiotics and drugs to battle diseases such as drug-resistant tuberculosis, malaria and diabetes. Specifically, the team used neutron crystallography to study the location of hydrogen atoms in aspartate aminotransferase, or AAT, an enzyme vital to the metabolism of certain amino acids.

Gravitational waves shed first light on mergers of neutron stars

EurekAlert! - Dom, 10/15/2017 - 22:00
Researchers representing the LIGO-Virgo Collaboration, of which the CNRS is a member, as well as 70 observatories, will reveal the latest discoveries from gravitational wave research.

Gold origin confirmed with first ever gravitational wave sighting

EurekAlert! - Dom, 10/15/2017 - 22:00
Gold's origin in the Universe has finally been confirmed, after a gravitational wave source was seen and heard for the first time ever by an international collaboration of researchers, with astronomers at the University of Warwick playing a leading role.

LIGO announces detection of gravitational waves from colliding neutron stars

EurekAlert! - Dom, 10/15/2017 - 22:00
The US-based Laser Interferometer Gravitational-Wave Observatory and the Virgo detector in Italy announced on Oct. 16 that all three of their detectors had picked up the ripples, or gravitational waves, from two neutron stars that collided 130 million years ago. Among other discoveries, the detection allowed scientists to use gravitational waves to directly calculate the rate at which the universe is expanding.

Brain training shows promise for patients with bipolar disorder

EurekAlert! - Dom, 10/15/2017 - 22:00
Researchers at McLean Hospital, an affiliate of Harvard Medical School, have discovered for the first time that computerized brain training can result in improved cognitive skills in individuals with bipolar disorder.

Women in science ask fewer questions than men, according to new research

EurekAlert! - Dom, 10/15/2017 - 22:00
Stereotypes suggest that women love to talk, with some studies even finding that women say three times as much as men. But, new research from a team from the Universities of Oxford and Cambridge, shows there is an exception to this rule: professional STEM events, which could be indicative of the wider problem of gender inequality in the field.

Relatively few kidney patients need to start dialysis after undergoing TAVR

EurekAlert! - Dom, 10/15/2017 - 22:00
The rate of patients with chronic kidney disease undergoing a heart procedure called transcatheter aortic valve replacement (TAVR) who eventually need to start dialysis is relatively low, suggests a new study published in JACC: Cardiovascular Interventions.

A new target for marijuana

EurekAlert! - Dom, 10/15/2017 - 22:00
Cellular-level changes to a part of the brain's reward system induced by chronic exposure to the psychoactive component of marijuana may contribute to the drug's pleasurable and potentially addictive qualities, suggests a study in young mice published in JNeurosci. The results could advance our understanding of marijuana's effects on the developing brain as the drug's rapidly changing legal status increases its recreational and medical use in the United States.

Nidoviruses redundantly express genes and encode more proteins than previously believed, study finds

EurekAlert! - Dom, 10/15/2017 - 22:00
Arteriviruses, a family of single-stranded RNA viruses that belongs to the order Nidovirales, produce more proteins and messenger RNAs than previously reported, a finding that provides important insights about a virus that could potentially evolve to infect humans in the future, according to a new research study.

Ocean atmosphere rife with microbes

EurekAlert! - Dom, 10/15/2017 - 22:00
Microbes are dispersed widely over the oceans with islands acting as stepping-stones to help transport of land-based organisms.

ESO telescopes observe first light from gravitational wave source

EurekAlert! - Dom, 10/15/2017 - 22:00
ESO's fleet of telescopes have detected the first visible counterpart to a gravitational wave source. These historic observations suggest that this unique object is the result of the merger of two neutron stars. The cataclysmic aftermaths of this kind of merger -- long-predicted events called kilonovae -- disperse heavy elements such as gold and platinum throughout the Universe. This discovery also provides the strongest evidence yet that short-duration gamma-ray bursts are caused by mergers of neutron stars.

Hubble observes source of gravitational waves for the first time

EurekAlert! - Dom, 10/15/2017 - 22:00
The NASA/ESA Hubble Space Telescope has observed for the first time the source of a gravitational wave, created by the merger of two neutron stars. This merger created a kilonova -- an object predicted by theory decades ago -- that ejects heavy elements such as gold and platinum into space. This event also provides the strongest evidence yet that short duration gamma-ray bursts are caused by mergers of neutron stars.

Nanoantenna arrays power a new generation of fluorescence-based sensors

EurekAlert! - Dom, 10/15/2017 - 22:00
Researchers from the Universities of Bristol and Bedfordshire, in collaboration with multinational company ABB, have designed and tested a series of plasmonic nanoantenna arrays that could lead to the development of a new generation of ultrasensitive and low-cost fluorescence sensors that could be used to monitor water quality.

CIFAR fellows part of first gravitational wave detection of colliding neutron stars

EurekAlert! - Dom, 10/15/2017 - 22:00
For the first time, scientists have directly detected gravitational waves from the spectacular collision of two neutron stars, and at the same time detected visible light from the merger. The discovery, reported today by a collaboration of scientists from around the world, marks the first time that a cosmic event has been detected through both light and gravitational waves -- the ripples in space-time predicted a century ago by Albert Einstein's general theory of relativity.

Childhood poverty, poor support may drive up pregnant woman's biological age

EurekAlert! - Dom, 10/15/2017 - 22:00
Pregnant women who had low socioeconomic status during childhood and who have poor family social support appear to prematurely age on a cellular level, potentially raising the risk for complications, a new study has found.

A kite that might fly

EurekAlert! - Dom, 10/15/2017 - 22:00
Wind turbines suspended high in the sky have potential as an alternative power source for Saudi Arabia.

Think laterally to sidestep production problems

EurekAlert! - Dom, 10/15/2017 - 22:00
The side-by-side deposition of atomically flat semiconductor sheets enhances solar cell conversion efficiency.

The nursing workforce is growing more diverse and educated, finds NYU Meyers study

EurekAlert! - Dom, 10/15/2017 - 22:00
More males and people of color are entering nursing, and more nurses are earning bachelor's degrees compared with a decade ago, according to a new study by NYU Rory Meyers College of Nursing researchers.

Long nanotubes make strong fibers

EurekAlert! - Dom, 10/15/2017 - 22:00
To make long, strong and conductive carbon nanotube fibers, it's best to start with long nanotubes, according to scientists at Rice University.

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