Having a companion in old age is good for people — and, it turns out, might extend the chance for life on certain Earth-sized planets in the cosmos as well.
Planets cool as they age. Over time their molten cores solidify and inner heat-generating activity dwindles, becoming less able to keep the world habitable by regulating carbon dioxide to prevent runaway heating or cooling. (more…)
University of Utah researchers find that multiple silent mutations greatly impact protein translation
So-called silent DNA mutations earned their title because, according to the fundamental rules of biology, they should be inconsequential. Reported on June 5 in PLOS Genetics online, University of Utah researchers experimentally proved there are frequent exceptions to the rule. The work was conducted in the bacteria, Salmonella enterica, used to study basic biological mechanisms that are often conserved in humans. (more…)
Scientists from the Woods Hole Oceanographic Institution (WHOI) are kicking off an innovative NOAA-funded pilot program using robotic instruments and computer modeling analysis to shed light on changing ocean conditions in the Gulf of Maine as they relate to the harmful algal bloom (HAB) phenomenon commonly known as the New England red tide.
The red tide is caused by the germination of dormant cysts of alga called Alexandrium fundyense, which produces a toxin that can cause paralytic shellfish poisoning (PSP). These cysts are found in bottom sediments and near-bottom waters, accumulating in “seedbeds” that serve as the source of swimming, rapidly dividing cells that form the blooms each spring. (more…)
Weather phenomenon triggers intense rainfall that leads to flash floods
COLUMBIA, Mo. – According to the National Weather Service, more than 125 people die from flash floods every year. Flash floods often arise from a weather phenomenon known as an “elevated convection,” which causes intense thunderstorms that lead to flash flooding. However, scientists do not have a strong understanding of what causes these elevated storms. A team of researchers at the University of Missouri will deploy to eastern Kansas and western Missouri to study this phenomenon throughout the spring. (more…)
Too much visual information causes a phenomenon known as ‘load induced blindness’, with an effect akin to dimming the lights, reports a new UCL study.
The new findings could be used to identify high-risk situations in all walks of life and look at ways to mitigate times of highest risk. These techniques could be used to understand everyday problems such as why you might bump into a lamppost on a busy street or even to assess the demanding information loads faced by pilots and surgeons. (more…)
Research finds rapid brain ‘remapping’ in patients years after stroke
By examining the sense of touch in stroke patients, a University of Delaware cognitive psychologist has found evidence that the brains of these individuals may be highly plastic even years after being damaged.
The research is published in the March 6 edition of the journal Current Biology, in an article written by Jared Medina, assistant professor of psychology at UD, and Brenda Rapp of Johns Hopkins University’s Department of Cognitive Science. The findings, which are focused on patients who lost the sense of touch in their hands after a stroke, also have potential implications for other impairments caused by brain damage, Medina said. (more…)
Brown University cognitive scientists have identified specific brain regions that work together to allow us to choose from among the options we store in working memory. Findings appear in the journal Neuron.
PROVIDENCE, R.I. [Brown University] — Keep this in mind: Scientists say they’ve learned how your brain plucks information out of working memory when you decide to act. (more…)
UCLA anthropologists study how, why we read into potential peril
They went boating alone without life vests and gave no thought to shimmying up very tall coconut trees.
And although they were only figments of a writer’s imagination, the fictional adventurers helped provide new insight into how humans, especially men, gauge the threat of a potential adversary. Those reading the stories — dozens of residents of a small village on the Fijian island of Yasawa — judged the characters to be risk-seekers. (more…)
