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.

Thanks to science and technology, food is no longer a luxury, it is a commodity. If anti-science groups spent less time scaring uneducated people and more time caring about humanity, there would be enough food to feed 10 billion people right now, just by reducing food waste.

Right now, almost 50 percent of the world's fruit and vegetable crops are lost, much of it due to perishable foods, according to the Food and Agriculture Organization (FAO) of the United Nations. A new study has one interesting solution - an odorless, biocompatible silk solution so thin as to be virtually invisible that keeps fruit fresh for more than a week without refrigeration. 

A study finds greater prevalence of mental health symptoms in the lesbian, gay, bisexual and questioning (LGBQ) community in your bisexual women. 

During routine visits with physicians, participants in the study, numbering 2,513 between the ages of 14 and 24, took a survey through Behavioral Health Screen, a tool designed to uncover mental health concerns in patients. The tool was developed by Guy Diamond, PhD, director of the Family Intervention Science program and co-author of the study.

ITHACA, NY--Potato plants boost the chemical defenses in their leaves when Guatemalan tuber moth larvae feed on their tubers, report researchers at the Boyce Thompson Institute (BTI).

While the potato's response may seem counterintuitive, it protects against leaf-eating pests, ensuring that the plant can maintain sugar production, to continue growing tubers during the moth larvae infestation. The study, which was led by BTI Professor Georg Jander and Katja Poveda, Assistant Professor of Entomology at Cornell University, appears in the journal Oecologia. The discovery may one day help reduce potato damage from insect pests and increase tuber yields.

Pregnancy sounds like the ultimate form of animal cooperation – mothers share their own bodies to grow and support their children’s prenatal development. But in reality, embryos use every trick in the book to take more than their fair share. Mothers, in turn, marshal their best defensive tactics.

Ultimately, it’s an evolutionary arms race. Offspring continually evolve strategies to steal resources, while mothers evolve strategies to defend their resources. Natural selection will favor embryos that are able to steal resources, but this will impose costs on the mother.