Escuelas

EurekAlert!

Subscribe to canal de noticias EurekAlert! EurekAlert!
The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
Actualizado: hace 2 horas 27 mins

ACA reduced disparities in health care access, report shows

Mar, 07/25/2017 - 22:00
The Affordable Care Act (ACA) has helped to close the gap in health care access between residents of poor and higher-income households, a new report by Boston University School of Public Health (BUSPH) researchers shows.

As more adults are diagnosed with cystic fibrosis, radiologists look for patterns

Mar, 07/25/2017 - 22:00
Marked improvements have been made over the past few decades in managing cystic fibrosis, but as more adults are diagnosed with the disease radiologists can do more to monitor the wide spectrum of CF in adults, including nonclassic imaging findings, according to an article published in the July 2017 issue of the American Journal of Roentgenology (AJR).

Bringing deep learning to big screen animation

Mar, 07/25/2017 - 22:00
Modern films and TV shows are filled with spectacular computer-generated sequences computed by rendering systems that simulate the flow of light in a three-dimensional scene and convert the information into a two-dimensional image. But computing the thousands of light rays (per frame) to achieve accurate color, shadows, reflectivity and other light-based characteristics is a labor-intensive, time-consuming and expensive undertaking. An alternative is to render the images using only a few light rays.

NASA's Terra Satellite catches the end of Tropical Depression Kulap

Mar, 07/25/2017 - 22:00
NASA's Terra satellite passed over Tropical Depression Kulap as the storm was winding down in the Northwestern Pacific Ocean. Strong wind shear was affecting the storm as a result of nearby Typhoon Noru.

Satellite sees Tropical Depression Greg as a ghostly swirl of clouds

Mar, 07/25/2017 - 22:00
Tropical Depression Greg appears as a ghostly swirl of low clouds on satellite imagery from NOAA's GOES-West satellite on July 27.

Using powerful Dark Energy Camera, scientists reach the cosmic dawn

Mar, 07/25/2017 - 22:00
Arizona State University astronomers Sangeeta Malhotra and James Rhoads, working with international teams in Chile and China, have discovered 23 young galaxies, seen as they were 800 million years after the Big Bang. The results from this sample have been recently published in the Astrophysical Journal.

UAlberta and McGill scientists uncover a hidden calcium cholesterol connection

Mar, 07/25/2017 - 22:00
It's well known that calcium is essential for strong bones and teeth, but new research shows it also plays a key role in moderating another important aspect of health -- cholesterol.Scientists at the University of Alberta and McGill University have discovered a direct link between calcium and cholesterol, a discovery that could pave the way for new ways of treating high blood cholesterol.

Triple-layer catalyst does double duty

Mar, 07/25/2017 - 22:00
A single, robust catalyst that splits water into hydrogen and oxygen has been developed with Earth-abundant materials that approach the efficiency of more expensive platinum, according to Rice and University of Houston scientists.

DAWN of a new day for stroke patients as study promises new options and a wider treatment window

Mar, 07/25/2017 - 22:00
Results of the first study showing some acute stroke patients could benefit from neuroendovascular surgery 6 to 24 hours after a stroke will be presented at the Society of NeuroInterventional Surgery's (SNIS) 14th Annual Meeting.

Massive star's dying blast caught by rapid-response telescopes

Mar, 07/25/2017 - 22:00
A blast of gamma rays from space detected in June 2016 is helping astronomers resolve long-standing questions about the universe's most powerful explosions.

Programming cells with computer-like logic

Mar, 07/25/2017 - 22:00
A team at Harvard's Wyss Institute for Biologically Inspired Engineering is presenting an all-in-one solution that imbues a molecule of 'ribo'nucleic acid or RNA with the capacity to sense multiple signals and make logical decisions to control protein production with high precision. The study's approach resulted in a genetically encodable RNA nano-device that can perform an unprecedented 12-input logic operation to accurately regulate the expression of a fluorescent reporter protein in E. coli bacteria.

Post-stroke patients reach terra firma with Wyss Institute's exosuit technology

Mar, 07/25/2017 - 22:00
In a new study published in Science Translational Medicine, a research team led by Conor Walsh collaborating with BU faculty members Terry Ellis, Lou Awad, and Ken Holt have demonstrated that exosuits can be used to improve walking after stroke -- a critical step in de-risking exosuit technology towards real-world clinical use.

Scientists regenerate retinal cells in mice in UW Medicine-led study

Mar, 07/25/2017 - 22:00
Scientists have succeeded in regenerating functional retinal cells in adult mice. Like humans, mice cannot repair damage to their retinas. However, because zebrafish can, researchers created in mice a version of the fish gene responsible for turning Muller glia into retinal cells if eye injury occurs. Researchers found way to prevent the gene's activity from being blocked as the mice got older. The new interneurons formed connections and reacted normally to signals from light-detecting cells in the retina.

Strange electrons break the crystal symmetry of high-temperature superconductors

Mar, 07/25/2017 - 22:00
Scientists have found surprising electron behavior that may help unravel the ever-elusive mechanism behind high-temperature superconductivity -- a phenomenon in which electrical current flows freely without resistance through a material at unusually high temperatures relative to those of conventional superconductors.

Brain cells found to control aging

Mar, 07/25/2017 - 22:00
Scientists at Albert Einstein College of Medicine have found that stem cells in the brain's hypothalamus govern how fast aging occurs in the body. The finding, made in mice, could lead to new strategies for warding off age-related diseases and extending lifespan. The paper was published online today in Nature.

Soft robotic exosuits help patients walk after stroke

Mar, 07/25/2017 - 22:00
Scientists have created lightweight and low-profile soft robotic ankle supports that could help stroke patients walk with less difficulty and more normal strides.

Gamma-ray burst captured in unprecedented detail

Mar, 07/25/2017 - 22:00
Using a wide array of ground- and space-based telescope observations, an international team led by University of Maryland astronomers constructed one of the most detailed descriptions of a gamma-ray burst to date. The event, named GRB160625B, revealed key details about the initial "prompt" phase of gamma-ray bursts and the evolution of the large jets of matter and energy that form as a result of the burst.

Living computers: RNA circuits transform cells into nanodevices

Mar, 07/25/2017 - 22:00
In new research, Alex Green, an assistant professor at ASU's Biodesign Institute and School of Molecular Sciences, demonstrates how living cells can be induced to carry out computations in the manner of tiny robots or computers.

UCI stem cell therapy attacks cancer by targeting unique tissue stiffness

Mar, 07/25/2017 - 22:00
A stem cell-based method created by University of California, Irvine scientists can selectively target and kill cancerous tissue while preventing some of the toxic side effects of chemotherapy by treating the disease in a more localized way.

Group relocation preserves social connections among elderly Japanese Tsunami survivors

Mar, 07/25/2017 - 22:00
Relocating in groups, rather than individually, increased informal socializing and social participation among older survivors of the 2011 Great East Japan Earthquake and Tsunami, a new study shows. The finding suggests local authorities should consider moving residents

Páginas