A NASA study finds that perennial sea ice in the Arctic is melting faster than previously thought–at a rate of 9 percent per decade. If these melting rates continue for a few more decades, the perennial sea ice will likely disappear entirely within this century, due to rising temperatures and interactions between ice, ocean and the atmosphere that accelerate the melting process.
Perennial sea ice floats in the polar oceans and remains at the end of the summer, when the ice cover is at its
Think of it as finding the ultimate genetic engineers.
A plant biologist at Michigan State University has harvested clues about genes that coordinate the development of plant parts that must work together.
The work, published in the Nov. 28 issue of the British science journal Nature, points to a single mechanism that regulates the growth of related parts in flowers – kind of a genetic project manager.
“This is why were not just a discombobulated collection
Nearly 40 years ago scientists were startled to discover that the eye, far from being a still camera, actually has cells that respond to movement. Moreover, these cells are specialized to respond to movement in one direction only, such as left to right or right to left.
Now, in a paper in this weeks issue of the journal Nature, biologists at the University of California, Berkeley, have finally detailed the cellular circuit responsible for motion detection in the eyes retina.
Representatives from 14 international, national, and regional organisations from around the world meeting in Brazil have agreed to form a World Federation of Science Journalists, recognizing the increasing international nature of science communication.
The new organization is designed to bridge scientists and society worldwide by creating a network for the exchange of information, improving access to scientific and technical sources and facilitating training and education of journalists par
A new study of snow accumulation on Canada’s highest mountain provides strong evidence that significant climate change has occurred in Western Canada over the past 150 years.
The study, which will appear in the Nov. 28th issue of Nature, examines climate change over the past 300 years and provides evidence that both surface and atmospheric temperatures have risen in Western Canada since the middle of the 19th century. Led by University of Toronto physicist, Professor Kent Moore, the
Researchers at Leeds have identified the gene which gives us bigger brains – the evolutionary attribute separating us from other animals. The gene came to light during a study by Geoff Woods, Jacquie Bond and Emma Roberts into the disease microcephaly, in which people are born with a smaller brain (and head).
Dr Woods, a clinical geneticist at St Jamess, noticed a high instance of microcephaly among his Pakistani patients. He found that, in the 1960s, a dam project in Pakistani-c