Turin, Italy: Young women with early breast cancer face a difficult choice about whether to opt for a mastectomy or breast conserving therapy (BCT). This is because there is little evidence as to whether the greater risk of a return of the disease at the site of the original tumour after BCT is linked to a greater risk of the cancer spreading to other parts of the body, leading to higher death rates.

BALTIMORE, MD - Mirroring national estimates, a new study that will be presented at the Pediatric Academic Societies 2016 Meeting found the percentage of children enrolled in the U.S. Military Healthcare System diagnosed with and treated for mental health disorders increased significantly during the past 15 years.

Tablet and laptop users beware. Using digital platforms such as tablets and laptops for reading may make you more inclined to focus on concrete details rather than interpreting information more abstractly, according to a new study published in the proceedings of ACM CHI '16, the ACM Conference on Human Factors in Computing Systems, to be held May 7-12, 2016. The findings serve as another wake-up call to how digital media may be affecting our likelihood of using abstract thought.

The United States Environmental Protection Agency has already been caught releasing proposals for early commentary to environmental trial lawyers and even republished Sierra Club talking points about Keystone XL, making them officially from the Obama administration.

You may not be surprised. The modern EPA is stuffed with former environmental activists, being at Union of Concerned Scientists is practically a shoe-in for a government job during the last seven years. Yet those clearly conflicted EPA officials have never recused themselves from decisions, even when being lobbied by their friends at activist organizations.

CORVALLIS, Ore. - Although the coastal regions of the Greenland Ice Sheet are experiencing rapid melting, a significant portion of the interior of that ice sheet has remained stable - but a new study suggests that stability may not continue.

Researchers found that very little of the snow and ice on the vast interior of the ice sheet is lost to the atmosphere through evaporation because of a strong thermal "lid" that essentially traps the moisture and returns it to the surface where it refreezes.

However, there are signs that this lid is becoming leaky as global temperatures increase. The researchers say there may be a threshold at which warming becomes sufficient to turn on a switch that will destabilize the snow surface.

If I said I was a licensed architect helping to fight dementia, you’d probably assume I was designing a care home or some similar building. Actually, I’ve been working alongside neuroscientists, psychologists, doctors and programmers to produce a computer game that could lead to better diagnoses for the condition.

Sea-level rise, erosion and coastal flooding are some of the greatest challenges facing humanity from climate change.

Recently at least five reef islands in the remote Solomon Islands have been lost completely to sea-level rise and coastal erosion, and a further six islands have been severely eroded.

These islands lost to the sea range in size from one to five hectares. They supported dense tropical vegetation that was at least 300 years old. Nuatambu Island, home to 25 families, has lost more than half of its habitable area, with 11 houses washed into the sea since 2011.

In modern microelectronics, nanobiotechnology, nanorobots increasingly have being used both organic biomacromolecules and fragments, as nucleotides, peptides, DNA, and inorganic elements, like as metallic nanoparticles, carbon nanotubes. The charge transfer in such heterogeneous systems to a large extent has to determined by the conformational changes of biological fragments. In studying the properties of these complex nanoparticles one of the effective tool is a hybrid method of molecular dynamics simulation, combining molecular-mechanical and quantum-mechanical approaches.

In 2014, scientists discovered a bizarre fossil--a crocodile-sized sea-dwelling reptile that lived 242 million years ago in what today is southern China. Its head was poorly preserved, but it seemed to have a flamingo-like beak. But in a paper published today in Science Advances, paleontologists reveal what was really going on--that "beak" is actually part of a hammerhead-shaped jaw apparatus, which it used to feed on plants on the ocean floor. It's the earliest known example of an herbivorous marine reptile.

It is one of the most famous paintings in American history: Christina's World, by Andrew Wyeth. The painting, which hangs in the Museum of Modern Art in New York, depicts a young woman in a field, gazing at a farmhouse on an idyllic summer day.

But this lovely image has a dark side.

The subject in the painting is Christina Olson, Wyeth's good friend and neighbor. For most of her life, she suffered from a mysterious disorder, which slowly took away her ability to walk, and eventually to use her hands. She died at the age of 74 after a difficult life, and her disease has never been diagnosed.

Until now.